{"title":"All Tests","description":null,"products":[{"product_id":"hormones-male","title":"Hormones — Male","description":"\u003cp\u003eThe full male hormone picture, including free testosterone. Not a single testosterone number.\u003c\/p\u003e\u003ch3\u003eMarkers measured (7)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTestosterone\u003c\/li\u003e\n\u003cli\u003eFree testosterone (calculated)\u003c\/li\u003e\n\u003cli\u003eOestradiol\u003c\/li\u003e\n\u003cli\u003eSHBG\u003c\/li\u003e\n\u003cli\u003eFSH\u003c\/li\u003e\n\u003cli\u003eLH\u003c\/li\u003e\n\u003cli\u003eProlactin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake between \u003cstrong\u003e7am and 10am, ideally fasted\u003c\/strong\u003e. Testosterone follows a daily rhythm and drops measurably after a meal.\u003c\/p\u003e\u003cp\u003eThe morning window matters and so does the fast. Glucose is the only marker we sell that is invalid unfasted, so if you cannot fast, keep the early slot and take it anyway.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003eSame markers either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Finger prick","offer_id":58266849345880,"sku":"N1-P-HORMONES-MALE-C","price":69.0,"currency_code":"GBP","in_stock":true},{"title":"Venous","offer_id":58266849313112,"sku":"N1-P-HORMONES-MALE-V","price":69.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/hormones-male-v5.png?v=1787608803"},{"product_id":"hormones-female","title":"Hormones — Female","description":"\u003cp\u003eThe full female hormone picture, with testosterone included rather than treated as a men’s marker. Most women never get this measured. You should be able to.\u003c\/p\u003e\u003ch3\u003eMarkers measured (8)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTestosterone\u003c\/li\u003e\n\u003cli\u003eFree testosterone (calculated)\u003c\/li\u003e\n\u003cli\u003eOestradiol\u003c\/li\u003e\n\u003cli\u003eSHBG\u003c\/li\u003e\n\u003cli\u003eFSH\u003c\/li\u003e\n\u003cli\u003eLH\u003c\/li\u003e\n\u003cli\u003eProlactin\u003c\/li\u003e\n\u003cli\u003eProgesterone\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWorking out your free androgen index\u003c\/h3\u003e\u003cp\u003eThis panel measures both numbers the free androgen index is built from, so you can calculate it yourself. Divide total testosterone by SHBG, both in nmol\/L, and multiply by 100. The units cancel, so the answer has none.\u003c\/p\u003e\u003cp\u003eIt was devised for investigating androgen excess in women and that is still where it earns its place, but two situations make it unreadable rather than merely rough. Below an SHBG of 30 nmol\/L it overstates how much testosterone is free. And on the combined pill it is not interpretable at all, because the pill raises SHBG and drives the number down while the progestogen in it can push the testosterone reading up.\u003c\/p\u003e\u003cp\u003eThe calculated free testosterone already on this panel is the better of the two numbers. Both the 2023 international guideline on PMOS and the Society for Endocrinology prefer it, because it holds up across the whole span of SHBG values where the index falls apart at the bottom.\u003c\/p\u003e\u003cp\u003eNo endocrine society publishes a threshold for the index, and the NHS labs that publish a range disagree with each other by roughly twofold, so a cut-off from one lab does not carry over to another. \u003ca href=\"\/pages\/biomarker-guide-hormones#m-free-androgen-index\"\u003eFree androgen index in the Biomarker Guide\u003c\/a\u003e sets out why, and what the published figures are actually based on.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake between \u003cstrong\u003e7am and 10am, ideally fasted\u003c\/strong\u003e. Cycle day matters: days 2–5 for FSH, LH and oestradiol; 7 days before your period is due for progesterone, which is day 21 of a 28-day cycle.\u003c\/p\u003e\u003cp\u003eThe morning window matters and so does the fast. Glucose is the only marker we sell that is invalid unfasted, so if you cannot fast, keep the early slot and take it anyway.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003eSame markers either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Finger prick","offer_id":58266849444184,"sku":"N1-P-HORMONES-FEMALE-C","price":75.0,"currency_code":"GBP","in_stock":true},{"title":"Venous","offer_id":58266849411416,"sku":"N1-P-HORMONES-FEMALE-V","price":75.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/hormones-female-v5.png?v=1787608803"},{"product_id":"thyroid-function","title":"Thyroid Function","description":"\u003cp\u003eTSH with both free hormones — not TSH on its own.\u003c\/p\u003e\u003ch3\u003eMarkers measured (3)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTSH\u003c\/li\u003e\n\u003cli\u003eFree T3\u003c\/li\u003e\n\u003cli\u003eFree T4\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake in the \u003cstrong\u003emorning, ideally fasted\u003c\/strong\u003e. TSH is at its highest overnight and drifts down through the day, and it reads a little higher fasted than after food. Fixing the time is what makes this test comparable with the next one.\u003c\/p\u003e\u003cp\u003eIf you take levothyroxine, take the sample before that day’s dose. A dose taken a few hours earlier lifts free T4.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003eSame markers either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Finger prick","offer_id":58266849542488,"sku":"N1-P-THYROID-FUNCTION-C","price":45.0,"currency_code":"GBP","in_stock":true},{"title":"Venous","offer_id":58266849509720,"sku":"N1-P-THYROID-FUNCTION-V","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/thyroid-function-v5.png?v=1787608803"},{"product_id":"iron-profile","title":"Iron Profile","description":"\u003cp\u003eFull iron status with ferritin and transferrin saturation included, not sold separately.\u003c\/p\u003e\u003ch3\u003eMarkers measured (5)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIron\u003c\/li\u003e\n\u003cli\u003eTotal iron binding capacity\u003c\/li\u003e\n\u003cli\u003eUnsaturated iron binding capacity\u003c\/li\u003e\n\u003cli\u003eTransferrin saturation\u003c\/li\u003e\n\u003cli\u003eFerritin\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake in the \u003cstrong\u003emorning, fasted\u003c\/strong\u003e. Serum iron rises after food and falls through the day.\u003c\/p\u003e\u003cp\u003eThe morning window matters and so does the fast. Glucose is the only marker we sell that is invalid unfasted, so if you cannot fast, keep the early slot and take it anyway.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003eSame markers either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Finger prick","offer_id":58266849608024,"sku":"N1-P-IRON-PROFILE-C","price":45.0,"currency_code":"GBP","in_stock":true},{"title":"Venous","offer_id":58266849575256,"sku":"N1-P-IRON-PROFILE-V","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/iron-profile-v5.png?v=1787608803"},{"product_id":"kidney-function","title":"Kidney Function","description":"\u003cp\u003eRenal markers that survive the post. Potassium is deliberately excluded — it is unreliable in a posted sample.\u003c\/p\u003e\u003ch3\u003eMarkers measured (3)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUrea\u003c\/li\u003e\n\u003cli\u003eCreatinine\u003c\/li\u003e\n\u003cli\u003eeGFR\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e Creatinine rises and urea falls after eating, and eGFR is calculated from creatinine.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003eSame markers either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Venous","offer_id":58266849673560,"sku":"N1-P-KIDNEY-FUNCTION-V","price":45.0,"currency_code":"GBP","in_stock":true},{"title":"Finger prick","offer_id":58266849706328,"sku":"N1-P-KIDNEY-FUNCTION-C","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/kidney-function-v6.png?v=1789032979"},{"product_id":"full-blood-count","title":"Full Blood Count","description":"\u003cp\u003eThe standard first look at anaemia, infection, and how your blood is behaving.\u003c\/p\u003e\u003ch3\u003eWhat’s measured\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed cells (7)\u003c\/strong\u003e — Red blood cell count, haemoglobin, haematocrit, MCV, MCH, MCHC and RDW — the numbers that show anaemia and what type it is\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite cells (11)\u003c\/strong\u003e — Total white cell count plus the full differential: neutrophils, lymphocytes, monocytes, eosinophils and basophils, each as an absolute count and a percentage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatelets (2)\u003c\/strong\u003e — Platelet count and MPV\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e20 markers in total.\u003c\/strong\u003e\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eSee every marker\u003c\/summary\u003e\u003cul\u003e\n\u003cli\u003eWhite blood cell count\u003c\/li\u003e\n\u003cli\u003eRed blood cell count\u003c\/li\u003e\n\u003cli\u003eHaemoglobin\u003c\/li\u003e\n\u003cli\u003eHaematocrit\u003c\/li\u003e\n\u003cli\u003eMCV\u003c\/li\u003e\n\u003cli\u003eMCH\u003c\/li\u003e\n\u003cli\u003eMCHC\u003c\/li\u003e\n\u003cli\u003eRDW\u003c\/li\u003e\n\u003cli\u003ePlatelet count\u003c\/li\u003e\n\u003cli\u003eMPV\u003c\/li\u003e\n\u003cli\u003eNeutrophils (absolute)\u003c\/li\u003e\n\u003cli\u003eLymphocytes (absolute)\u003c\/li\u003e\n\u003cli\u003eMonocytes (absolute)\u003c\/li\u003e\n\u003cli\u003eEosinophils (absolute)\u003c\/li\u003e\n\u003cli\u003eBasophils (absolute)\u003c\/li\u003e\n\u003cli\u003eNeutrophils %\u003c\/li\u003e\n\u003cli\u003eLymphocytes %\u003c\/li\u003e\n\u003cli\u003eMonocytes %\u003c\/li\u003e\n\u003cli\u003eEosinophils %\u003c\/li\u003e\n\u003cli\u003eBasophils %\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e Take it before hard training rather than after, since intense exercise raises the white cell count for several hours. Stay hydrated, because dehydration concentrates every number on this test at once.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850197848,"sku":"N1-P-FULL-BLOOD-COUNT","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/full-blood-count-v5.png?v=1787608803"},{"product_id":"liver-profile","title":"Liver Profile","description":"\u003cp\u003eA full liver picture including GGT and AST, which are routinely left out elsewhere.\u003c\/p\u003e\u003ch3\u003eMarkers measured (8)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTotal protein\u003c\/li\u003e\n\u003cli\u003eAlbumin\u003c\/li\u003e\n\u003cli\u003eGlobulin\u003c\/li\u003e\n\u003cli\u003eTotal bilirubin\u003c\/li\u003e\n\u003cli\u003eALP\u003c\/li\u003e\n\u003cli\u003eALT\u003c\/li\u003e\n\u003cli\u003eAST\u003c\/li\u003e\n\u003cli\u003eGGT\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e ALP and albumin rise after a meal, and bilirubin falls.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eVenous — 8 markers. Finger prick — 7 markers.\u003c\/strong\u003e AST is accredited for venous blood only, so it is not reported on a finger-prick sample. Everything else is identical.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Venous","offer_id":58266850263384,"sku":"N1-P-LIVER-PROFILE-V","price":45.0,"currency_code":"GBP","in_stock":true},{"title":"Finger prick","offer_id":58266850296152,"sku":"N1-P-LIVER-PROFILE-C","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/liver-profile-v5.png?v=1787608803"},{"product_id":"lipid-profile","title":"Lipid Profile","description":"\u003cp\u003eStandard lipids, with non-HDL cholesterol and HDL as a percentage of total cholesterol reported alongside.\u003c\/p\u003e\u003ch3\u003eMarkers measured (6)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTotal cholesterol\u003c\/li\u003e\n\u003cli\u003eHDL cholesterol\u003c\/li\u003e\n\u003cli\u003eLDL cholesterol\u003c\/li\u003e\n\u003cli\u003eTriglycerides\u003c\/li\u003e\n\u003cli\u003eNon-HDL cholesterol\u003c\/li\u003e\n\u003cli\u003eHDL as % of total cholesterol\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e Triglycerides rise after a meal and calculated LDL moves with them.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003eSame markers either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Finger prick","offer_id":58266850394456,"sku":"N1-P-LIPID-PROFILE-C","price":45.0,"currency_code":"GBP","in_stock":true},{"title":"Venous","offer_id":58266850361688,"sku":"N1-P-LIPID-PROFILE-V","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/lipid-profile-v5.png?v=1787608803"},{"product_id":"n1-panel","title":"N=1 Panel","description":"\u003cp\u003eThe comprehensive panel. Your whole picture from a single sample. Find out your N=1.\u003c\/p\u003e\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHormones (9)\u003c\/strong\u003e — Testosterone, free testosterone, oestradiol, SHBG, FSH, LH, prolactin, progesterone and free androgen index\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile (8)\u003c\/strong\u003e — ALT, AST, ALP, GGT and bilirubin, plus three protein markers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKidney Function (3)\u003c\/strong\u003e — Urea, creatinine and eGFR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThyroid Function (3)\u003c\/strong\u003e — TSH, free T3 and free T4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile (6)\u003c\/strong\u003e — Total cholesterol, HDL, LDL and triglycerides, plus non-HDL cholesterol and HDL as a percentage of total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIron Profile (5)\u003c\/strong\u003e — Iron, ferritin, transferrin saturation and two binding capacities\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Blood Count (20)\u003c\/strong\u003e — Haemoglobin, haematocrit, red and white cell counts, platelets, and the full white cell differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHbA1c (1)\u003c\/strong\u003e — average blood sugar over the previous two to three months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ehs-CRP (1)\u003c\/strong\u003e — high-sensitivity inflammation marker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVitamin D (1)\u003c\/strong\u003e — 25-OH vitamin D, the form used to measure your status\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApoB (1)\u003c\/strong\u003e — the number of particles carrying your cholesterol, not the amount they carry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e58 markers in total.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBought separately, these 11 components cost £402.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdetails\u003e\n\u003csummary\u003eSee every marker\u003c\/summary\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHormones\u003c\/strong\u003e — Testosterone, Free testosterone (calculated), Oestradiol, SHBG, FSH, LH, Prolactin, Progesterone, Free androgen index (calculated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile\u003c\/strong\u003e — Total protein, Albumin, Globulin, Total bilirubin, ALP, ALT, AST, GGT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKidney Function\u003c\/strong\u003e — Urea, Creatinine, eGFR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThyroid Function\u003c\/strong\u003e — TSH, Free T3, Free T4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIron Profile\u003c\/strong\u003e — Iron, Total iron binding capacity, Unsaturated iron binding capacity, Transferrin saturation, Ferritin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Blood Count\u003c\/strong\u003e — White blood cell count, Red blood cell count, Haemoglobin, Haematocrit, MCV, MCH, MCHC, RDW, Platelet count, MPV, Neutrophils (absolute), Lymphocytes (absolute), Monocytes (absolute), Eosinophils (absolute), Basophils (absolute), Neutrophils %, Lymphocytes %, Monocytes %, Eosinophils %, Basophils %\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHbA1c\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ehs-CRP\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVitamin D\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eApoB\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/details\u003e\n\u003ch3\u003eTiming\u003c\/h3\u003e\n\u003cp\u003eTake between \u003cstrong\u003e7am and 10am, fasted\u003c\/strong\u003e. This panel contains testosterone, lipids, iron and kidney markers, all of which move with food. Cycle day matters for the hormones: days 2–5, or 7 days before your period is due for progesterone (usually day 21).\u003c\/p\u003e\n\u003cp\u003eThe morning window matters and so does the fast. Glucose is the only marker we sell that is invalid unfasted, so if you cannot fast, keep the early slot and take it anyway.\u003c\/p\u003e\n\u003ch3\u003eBefore you order\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850427224,"sku":"N1-B-N1-PANEL","price":179.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/n1panel1.png?v=1790677929"},{"product_id":"trt-monitor","title":"TRT Monitor","description":"\u003cp\u003eBuilt for people on testosterone who already know what they are tracking. The hormone picture, plus the organs testosterone therapy puts under load.\u003c\/p\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHormones — Male (7)\u003c\/strong\u003e — Testosterone, Free testosterone (calculated), Oestradiol, SHBG, FSH, LH, Prolactin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Blood Count (20)\u003c\/strong\u003e — Haemoglobin, haematocrit, red and white cell counts, platelets, and the full white cell differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile (8)\u003c\/strong\u003e — ALT, AST, ALP, GGT and bilirubin, plus three protein markers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile (6)\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso included (2)\u003c\/strong\u003e — Ferritin, PSA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e43 markers in total.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBought separately, these 6 components cost £228.\u003c\/strong\u003e\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eSee every marker\u003c\/summary\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHormones — Male\u003c\/strong\u003e — Testosterone, Free testosterone (calculated), Oestradiol, SHBG, FSH, LH, Prolactin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Blood Count\u003c\/strong\u003e — White blood cell count, Red blood cell count, Haemoglobin, Haematocrit, MCV, MCH, MCHC, RDW, Platelet count, MPV, Neutrophils (absolute), Lymphocytes (absolute), Monocytes (absolute), Eosinophils (absolute), Basophils (absolute), Neutrophils %, Lymphocytes %, Monocytes %, Eosinophils %, Basophils %\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile\u003c\/strong\u003e — Total protein, Albumin, Globulin, Total bilirubin, ALP, ALT, AST, GGT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso included\u003c\/strong\u003e — Ferritin, PSA\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake between \u003cstrong\u003e7am and 10am, fasted\u003c\/strong\u003e. Testosterone drops after a meal and triglycerides rise.\u003c\/p\u003e\u003cp\u003eThe morning window matters and so does the fast. Glucose is the only marker we sell that is invalid unfasted, so if you cannot fast, keep the early slot and take it anyway.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850492760,"sku":"N1-B-TRT-MONITOR","price":99.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/trt-monitor-v7.png?v=1787856341"},{"product_id":"full-body-baseline","title":"Full Body Baseline","description":"\u003cp\u003eThe general baseline, without hormones. The place to start if you have never tested before.\u003c\/p\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Blood Count (20)\u003c\/strong\u003e — Haemoglobin, haematocrit, red and white cell counts, platelets, and the full white cell differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile (8)\u003c\/strong\u003e — ALT, AST, ALP, GGT and bilirubin, plus three protein markers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKidney Function (3)\u003c\/strong\u003e — Urea, Creatinine, eGFR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile (6)\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThyroid Function (3)\u003c\/strong\u003e — TSH, Free T3, Free T4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHbA1c (1)\u003c\/strong\u003e — average blood sugar over the previous two to three months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ehs-CRP (1)\u003c\/strong\u003e — high-sensitivity inflammation marker\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e42 markers in total.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBought separately, these 7 components cost £247.\u003c\/strong\u003e\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eSee every marker\u003c\/summary\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Blood Count\u003c\/strong\u003e — White blood cell count, Red blood cell count, Haemoglobin, Haematocrit, MCV, MCH, MCHC, RDW, Platelet count, MPV, Neutrophils (absolute), Lymphocytes (absolute), Monocytes (absolute), Eosinophils (absolute), Basophils (absolute), Neutrophils %, Lymphocytes %, Monocytes %, Eosinophils %, Basophils %\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile\u003c\/strong\u003e — Total protein, Albumin, Globulin, Total bilirubin, ALP, ALT, AST, GGT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKidney Function\u003c\/strong\u003e — Urea, Creatinine, eGFR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThyroid Function\u003c\/strong\u003e — TSH, Free T3, Free T4\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHbA1c\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ehs-CRP\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted\u003c\/strong\u003e, for the lipid and kidney markers.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850525528,"sku":"N1-B-FULL-BODY-BASELINE","price":89.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/FBB.png?v=1790677930"},{"product_id":"metabolic-risk","title":"Metabolic Risk","description":"\u003cp\u003eGlucose handling, lipids and inflammation in one draw, with ApoB included as standard.\u003c\/p\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile (6)\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile (8)\u003c\/strong\u003e — ALT, AST, ALP, GGT and bilirubin, plus three protein markers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso included (4)\u003c\/strong\u003e — HbA1c, Random glucose, hs-CRP, ApoB\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e18 markers in total.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBought separately, these 6 components cost £136.\u003c\/strong\u003e\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eSee every marker\u003c\/summary\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiver Profile\u003c\/strong\u003e — Total protein, Albumin, Globulin, Total bilirubin, ALP, ALT, AST, GGT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso included\u003c\/strong\u003e — HbA1c, Random glucose, hs-CRP, ApoB\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFast for 10–12 hours, water only.\u003c\/strong\u003e The glucose on this panel is reported as a random glucose, so fasting is what makes the number worth reading. It also gives a clean triglyceride result.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850591064,"sku":"N1-B-METABOLIC-RISK","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/metabolic-risk-v8_5858b2b7-f063-4a4a-845e-dcad4b22447b.png?v=1790281019"},{"product_id":"cardiovascular-risk","title":"Cardiovascular Risk","description":"\u003cp\u003eBeyond a standard lipid panel: ApoB, ApoA1 and the ApoB:ApoA1 ratio, plus hs-CRP.\u003c\/p\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile (6)\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso included (4)\u003c\/strong\u003e — ApoB, ApoA1, ApoB : ApoA1 ratio, hs-CRP\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e10 markers in total.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBought separately, these 4 components cost £81.\u003c\/strong\u003e\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eSee every marker\u003c\/summary\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipid Profile\u003c\/strong\u003e — Total cholesterol, HDL cholesterol, LDL cholesterol, Triglycerides, Non-HDL cholesterol, HDL as % of total cholesterol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso included\u003c\/strong\u003e — ApoB, ApoA1, ApoB : ApoA1 ratio, hs-CRP\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted\u003c\/strong\u003e, for triglycerides. ApoB and ApoA1 read reliably either way, which is part of why they are here.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\u003cp\u003eSame markers either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003cbr\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — an at-home test you do yourself, in under ten minutes. No blood draw appointment needed. Post it the same day it is taken. The timing above still applies. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eBefore you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Finger prick","offer_id":58266850656600,"sku":"N1-B-CARDIOVASCULAR-RISK-C","price":65.0,"currency_code":"GBP","in_stock":true},{"title":"Venous","offer_id":58266850623832,"sku":"N1-B-CARDIOVASCULAR-RISK-V","price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/cardiovascular-risk-v8.png?v=1790280982"},{"product_id":"hs-crp","title":"High-Sensitivity CRP (hs-CRP)","description":"\u003cp\u003eThe same protein as a standard CRP, measured at concentrations low enough to see the background inflammation that sits below acute illness.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-inflammation#m-high-sensitivity-crp\"\u003eHigh-Sensitivity CRP in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e Recent illness and hard training both raise CRP for several days. Leave a clear week after either if you want a number that reflects your baseline rather than the week you have just had.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850689368,"sku":"N1-A-HSCRP","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/hs-crp-v5.png?v=1787608803"},{"product_id":"adjusted-calcium","title":"Adjusted Calcium","description":"\u003cp\u003eCalcium corrected for the albumin carrying it. Low albumin makes an uncorrected calcium look low when the active calcium is entirely normal, so the adjusted figure is the one worth reading.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-vitamins-and-minerals#m-adjusted-calcium\"\u003eAdjusted Calcium in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e Calcium rises after a meal. The albumin it is corrected against does not, so the fasting is for the calcium.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850722136,"sku":"N1-A-ADJUSTED-CALCIUM","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/adjusted-calcium-v5.png?v=1787608803"},{"product_id":"uric-acid","title":"Uric Acid","description":"\u003cp\u003eThe end product of purine breakdown. At high enough concentrations it crystallises in joints, which is what gout is.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-kidney#m-uric-acid\"\u003eUric Acid in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e Uric acid moves after a purine-rich meal.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850787672,"sku":"N1-A-URIC-ACID","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/uric-acid-v5.png?v=1787608803"},{"product_id":"oestradiol","title":"Oestradiol","description":"\u003cp\u003eThe main oestrogen in both women and men. In men it is made by converting testosterone, and it is read alongside testosterone rather than on its own.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-hormones#m-oestradiol\"\u003eOestradiol in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eCycle day matters: \u003cstrong\u003edays 2–5\u003c\/strong\u003e is standard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850853208,"sku":"N1-A-OESTRADIOL","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/oestradiol-v5.png?v=1787608803"},{"product_id":"prolactin","title":"Prolactin","description":"\u003cp\u003eA pituitary hormone that suppresses testosterone when it is raised. A standard check in unexplained low testosterone, because a treatable cause is easy to miss.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-hormones#m-prolactin\"\u003eProlactin in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRest for 30 minutes first.\u003c\/strong\u003e Avoid vigorous exercise and sexual activity for 48 hours — both raise it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850885976,"sku":"N1-A-PROLACTIN","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/prolactin-v5.png?v=1787608803"},{"product_id":"magnesium","title":"Magnesium","description":"\u003cp\u003eInvolved in several hundred enzyme reactions. Less than one per cent of the body’s magnesium sits in blood, so a low result is meaningful but a normal one does not rule depletion out.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-vitamins-and-minerals#m-magnesium\"\u003eMagnesium in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake in the \u003cstrong\u003emorning, before any supplements\u003c\/strong\u003e. Serum magnesium dips after food and drifts through the day. If you take magnesium, leave at least 24 hours between the last dose and the sample, or you are measuring the dose rather than your stores.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850918744,"sku":"N1-A-MAGNESIUM","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/magnesium-v5.png?v=1787608803"},{"product_id":"cortisol","title":"Cortisol","description":"\u003cp\u003eCortisol, timed against your own waking hour rather than the clock. An afternoon sample is not worth paying for.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-hormones#m-cortisol\"\u003eCortisol in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eCollect \u003cstrong\u003eone to three hours after you wake\u003c\/strong\u003e. Cortisol is timed against your waking hour, not the clock. No fasting needed, and a long fast can push cortisol up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266850984280,"sku":"N1-A-CORTISOL","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/cortisol-v5.png?v=1787608803"},{"product_id":"progesterone","title":"Progesterone","description":"\u003cp\u003eProduced after ovulation and low for most of the month, which makes the day it is taken most of the test.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-hormones#m-progesterone\"\u003eProgesterone in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eCycle day matters: \u003cstrong\u003eday 21\u003c\/strong\u003e of a 28-day cycle is standard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851049816,"sku":"N1-A-PROGESTERONE","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/progesterone-v5.png?v=1787608803"},{"product_id":"ferritin","title":"Ferritin","description":"\u003cp\u003eThe protein iron is stored in, and the single most useful marker of iron stores. It also rises with inflammation, which can mask genuinely low stores.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-iron#m-ferritin\"\u003eFerritin in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed.\u003c\/strong\u003e Ferritin is not moved about by a meal the way serum iron is, which is why the iron profile asks for a fasted morning sample and this does not. Recent illness matters more. Ferritin rises with any inflammation, so it can read normal in the fortnight after an infection even when stores are low.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851082584,"sku":"N1-A-FERRITIN","price":9.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/ferritin-v5.png?v=1787608803"},{"product_id":"creatine-kinase","title":"Creatine Kinase (CK)","description":"\u003cp\u003eRoutinely elevated in people who train hard. Add it if you want the number in front of you.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-other#m-creatine-kinase\"\u003eCreatine Kinase in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eAvoid \u003cstrong\u003eheavy training for 48 hours\u003c\/strong\u003e. Exercise raises creatine kinase substantially.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851115352,"sku":"N1-A-CREATINE-KINASE","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/creatine-kinase-v5.png?v=1787608804"},{"product_id":"glucose-fasting","title":"Glucose (fasting)","description":"\u003cp\u003eBlood sugar at a single moment. Taken fasted, it reflects how well your body holds glucose steady at rest.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-blood-sugar#m-glucose\"\u003eGlucose in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eFast for 10–12 hours, water only.\u003c\/strong\u003e A non-fasted glucose is not valid. It is the one marker we sell where fasting is not optional.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851148120,"sku":"N1-A-GLUCOSE-FASTING","price":10.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/glucose-fasting-v5.png?v=1787608803"},{"product_id":"shbg","title":"Sex Hormone Binding Globulin (SHBG)","description":"\u003cp\u003eThe protein that carries testosterone and oestradiol around the blood. It changes how a total testosterone result should be read, which is why it is rarely useful alone.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-hormones#m-sex-hormone-binding-globulin\"\u003eSex Hormone Binding Globulin in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake between \u003cstrong\u003e7am and 10am\u003c\/strong\u003e, alongside the hormones it is used to interpret.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851213656,"sku":"N1-A-SHBG","price":10.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/shbg-v5.png?v=1787608803"},{"product_id":"folate","title":"Folate","description":"\u003cp\u003eVitamin B9, essential for DNA and red blood cell production. Deficiency produces the same large-cell anaemia as B12, which is why the two are usually read together.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-vitamins-and-minerals#m-folate\"\u003eFolate in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted, in the morning.\u003c\/strong\u003e Serum folate rises after a meal or a supplement, so a non-fasted sample can read higher than your stores actually are.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851279192,"sku":"N1-A-FOLATE","price":11.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/folate-v5.png?v=1787608804"},{"product_id":"dhea-s","title":"DHEA-Sulphate (DHEA-S)","description":"\u003cp\u003eAn adrenal hormone that acts as a precursor to both testosterone and oestrogen. It declines steadily from the mid-twenties, so a result is read against age rather than a single adult range.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-hormones#m-dhea-sulphate\"\u003eDHEA-Sulphate in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake in the \u003cstrong\u003emorning\u003c\/strong\u003e, alongside the other hormones. \u003cstrong\u003eNo fasting needed.\u003c\/strong\u003e DHEA-S is far steadier through the day than cortisol or testosterone, so an afternoon sample is not a wasted one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851311960,"sku":"N1-A-DHEAS","price":12.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/dhea-s-v5.png?v=1787608803"},{"product_id":"esr","title":"Erythrocyte Sedimentation Rate (ESR)","description":"\u003cp\u003eA non-specific inflammation marker that moves over days rather than hours, so it shows a pattern where hs-CRP shows a moment.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-inflammation#m-erythrocyte-sedimentation-rate\"\u003eErythrocyte Sedimentation Rate in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003cp\u003eThis marker sits outside the lab’s UKAS ISO 15189 scope. Same lab, same analysers — see \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e for what that means.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e Recent illness is what matters. ESR stays raised for weeks after an infection, so a sample taken soon after one tells you about the infection rather than about your baseline.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851344728,"sku":"N1-A-ESR","price":12.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/esr-v5.png?v=1787608803"},{"product_id":"total-b12","title":"Total Vitamin B12","description":"\u003cp\u003eThe standard first-line B12 test. It includes the large fraction bound to a carrier that does not deliver B12 to cells, which is its main weakness.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-vitamins-and-minerals#m-total-vitamin-b12\"\u003eTotal Vitamin B12 in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e If you take a B12 supplement or have had a B12 injection, the result reflects that rather than your own stores.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851443032,"sku":"N1-A-TOTAL-VITAMIN-B12","price":12.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/total-b12-v5.png?v=1787608803"},{"product_id":"hba1c","title":"Haemoglobin A1c (HbA1c)","description":"\u003cp\u003eAverage blood sugar over roughly the previous two to three months, weighted towards the recent end. No fasting, any time of day.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-blood-sugar#m-hba1c\"\u003eHaemoglobin A1c in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e HbA1c is an average over the previous two to three months, so nothing you do on the morning of the test changes it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851508568,"sku":"N1-A-HBA1C","price":14.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/hba1c-v5.png?v=1787608803"},{"product_id":"apob","title":"Apolipoprotein B (ApoB)","description":"\u003cp\u003eThe particle count, not just the cholesterol carried inside them.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-lipids-and-cardiovascular#m-apolipoprotein-b\"\u003eApolipoprotein B in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted\u003c\/strong\u003e, to match the lipid panel it is read alongside. ApoB itself changes very little after a meal, which is part of why it is worth measuring.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851672408,"sku":"N1-A-APOB","price":14.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/apob-v5.png?v=1787608803"},{"product_id":"apoa1","title":"Apolipoprotein A1 (ApoA1)","description":"\u003cp\u003eThe main protein on HDL particles, so it counts them the way ApoB counts the harmful ones. Chiefly used as the denominator in the ApoB to ApoA1 ratio.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-lipids-and-cardiovascular#m-apolipoprotein-a1\"\u003eApolipoprotein A1 in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted\u003c\/strong\u003e, to match the lipid panel it is read alongside. ApoA1 itself changes very little after a meal.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851705176,"sku":"N1-A-APOA1","price":14.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/apoa1-v5.png?v=1787608803"},{"product_id":"psa","title":"Prostate-Specific Antigen (PSA)","description":"\u003cp\u003eSold with pre-test information rather than quietly bundled in.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-other#m-prostate-specific-antigen\"\u003eProstate-Specific Antigen in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eAvoid \u003cstrong\u003eejaculation and cycling for 48 hours\u003c\/strong\u003e beforehand. Both raise PSA.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851737944,"sku":"N1-A-PSA","price":15.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/psa-v5.png?v=1787608803"},{"product_id":"active-b12","title":"Active Vitamin B12","description":"\u003cp\u003eThe fraction of vitamin B12 your cells can actually use. It falls before total B12 does, so it picks up a developing deficiency earlier.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-vitamins-and-minerals#m-active-vitamin-b12\"\u003eActive Vitamin B12 in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e If you take a B12 supplement or have had a B12 injection, the result reflects that rather than your own stores.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851836248,"sku":"N1-A-ACTIVE-VITAMIN-B12","price":15.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/active-b12-v5.png?v=1787608803"},{"product_id":"thyroid-antibodies","title":"Thyroid Antibodies (TPO and Tg)","description":"\u003cp\u003eAntibodies against thyroid tissue, both thyroid peroxidase and thyroglobulin. They answer whether the immune system is involved, which is a different question from how much hormone is present.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-thyroid#m-thyroid-antibodies\"\u003eThyroid Antibodies in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e Antibody levels do not swing about the way TSH does. Stop high-dose biotin 48 hours beforehand, because it interferes with the assay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851869016,"sku":"N1-A-THYROID-ANTIBODIES","price":18.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/thyroid-antibodies-v5.png?v=1787608804"},{"product_id":"zinc","title":"Zinc","description":"\u003cp\u003eRequired for immune function, wound healing, taste and smell, and testosterone production. Serum zinc falls after food and during illness, so when the sample is taken matters.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-vitamins-and-minerals#m-zinc\"\u003eZinc in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003cp\u003eThis marker sits outside the lab’s UKAS ISO 15189 scope. Same lab, same analysers — see \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e for what that means.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake in the \u003cstrong\u003emorning, before any supplements\u003c\/strong\u003e. Serum zinc falls after food and drifts through the day. If you take a zinc supplement, leave at least 24 hours between the last dose and the sample.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851901784,"sku":"N1-A-ZINC","price":21.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/zinc-v5.png?v=1787608803"},{"product_id":"vitamin-d","title":"Vitamin D (25-OH)","description":"\u003cp\u003eThe storage form of vitamin D and the standard way status is assessed. In the UK it falls through autumn and winter for almost everyone, because the sun is not strong enough for the skin to make any between October and March.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-vitamins-and-minerals#m-vitamin-d\"\u003eVitamin D in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e The month matters far more than the hour. In the UK a level taken in March is close to your yearly low and one taken in September close to your peak.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266851967320,"sku":"N1-A-VITAMIN-D","price":21.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/vitamin-d-v5.png?v=1787608803"},{"product_id":"lipase","title":"Lipase","description":"\u003cp\u003eThe preferred marker of pancreatic inflammation, having largely replaced amylase because it is more specific and stays raised longer.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-liver#m-lipase\"\u003eLipase in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e Lipase rises after a fatty meal.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852032856,"sku":"N1-A-LIPASE","price":32.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/lipase-v5.png?v=1787608803"},{"product_id":"amh","title":"Anti-Müllerian Hormone (AMH)","description":"\u003cp\u003eAn estimate of ovarian reserve. Unusually among female hormones, it can be measured on any day of the cycle.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-hormones#m-anti-m-llerian-hormone\"\u003eAnti-Müllerian Hormone in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular cycle day.\u003c\/strong\u003e AMH holds steady across the month, which is part of why it is used. The combined oral contraceptive pill lowers it, and it can still be below your usual level 3 months after stopping. Hormonal coils do not appear to.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852065624,"sku":"N1-A-AMH","price":39.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/amh-v5.png?v=1787608803"},{"product_id":"cystatin-c","title":"Cystatin C","description":"\u003cp\u003eA creatinine-independent kidney marker, unaffected by muscle mass — which matters if you carry a lot of it.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-kidney#m-cystatin-c\"\u003eCystatin C in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e Unlike creatinine, cystatin C is not pushed up by a meal of cooked meat, and it does not move with muscle mass.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852098392,"sku":"N1-A-CYSTATIN-C","price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/cystatin-c-v5.png?v=1787608803"},{"product_id":"lp-a","title":"Lipoprotein(a)","description":"\u003cp\u003eLargely set by your genes and stable across your lifetime. Most people test it once.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-lipids-and-cardiovascular#m-lipoprotein-a\"\u003eLipoprotein(a) in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\n\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\n\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo fasting needed and no particular time of day.\u003c\/strong\u003e Lp(a) is set genetically and barely moves across a lifetime, which is why it is usually measured once rather than tracked.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852131160,"sku":"N1-A-LPA","price":25.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/lp-a-v5.png?v=1787608803"},{"product_id":"total-thyroxine-t4","title":"Total Thyroxine (T4)","description":"\u003cp\u003eTotal T4 alongside free T4. Rarely offered in UK direct-to-consumer testing.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003eTake in the \u003cstrong\u003emorning, ideally fasted\u003c\/strong\u003e, alongside the rest of thyroid function. If you take levothyroxine, take the sample before that day’s dose. A dose taken a few hours earlier lifts T4.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852163928,"sku":"N1-A-TOTAL-THYROXINE","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/total-thyroxine-t4-v5.png?v=1787608803"},{"product_id":"clinic-appointment","title":"Clinic Appointment","description":"\u003cp\u003eA phlebotomist takes your sample at a CQC-regulated clinic hub. A nationwide network of 275 clinics.\u003c\/p\u003e\u003ch3\u003eHow it works\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eWe post your kit to you.\u003c\/li\u003e\n\u003cli\u003eYou book an appointment at your nearest hub and take the kit with you.\u003c\/li\u003e\n\u003cli\u003eA trained phlebotomist takes your sample.\u003c\/li\u003e\n\u003cli\u003eYou post the sample the same day, before that day's final collection.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eCheck there is a clinic near you before you order.\u003c\/strong\u003e If you are not sure, email contact@n1health.co.uk with your postcode before you buy and we will tell you.\u003c\/p\u003e\u003ch3\u003eChanges and cancellations\u003c\/h3\u003e\u003cp\u003eAppointments can be moved or cancelled free of charge with at least \u003cstrong\u003e24 hours' notice\u003c\/strong\u003e. Inside that window, or if you do not attend, the appointment fee is not refunded and a further appointment must be purchased. Your panel and kit are not affected. If the provider cannot carry out the draw, we rebook you at no cost.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBook your draw for a Monday to Thursday.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eA blood draw option must be added to an order containing a profile or panel. It cannot be bought on its own.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852262232,"sku":"N1-D-CLINIC-APPOINTMENT","price":45.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/clinic-appointment-v5.png?v=1787608803"},{"product_id":"home-visit","title":"Home Visit","description":"\u003cp\u003eA qualified nurse comes to your home, takes your sample and takes it away with them. Nothing is posted, in either direction.\u003c\/p\u003e\u003ch3\u003eHow it works\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eWe arrange the visit with the lab's nurse service.\u003c\/li\u003e\n\u003cli\u003eThe nurse attends your address at an agreed time, bringing the tubes.\u003c\/li\u003e\n\u003cli\u003eYour sample goes back with the nurse, direct to the lab.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eNo kit is posted to you on this route\u003c\/strong\u003e, and you do not post anything. If you have chosen a home visit, ignore any instruction about kits and postage — it does not apply to your order.\u003c\/p\u003e\u003ch3\u003eChanges and cancellations\u003c\/h3\u003e\u003cp\u003eAppointments can be moved or cancelled free of charge with at least \u003cstrong\u003e72 hours' notice\u003c\/strong\u003e. Inside that window, or if you do not attend, the appointment fee is not refunded and a further appointment must be purchased. Your panel and kit are not affected. If the provider cannot carry out the draw, we rebook you at no cost.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBook your draw for a Monday to Thursday.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eA blood draw option must be added to an order containing a profile or panel. It cannot be bought on its own.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852295000,"sku":"N1-D-HOME-VISIT","price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/home-visit-v5.png?v=1787608803"},{"product_id":"own-blood-draw","title":"I'll arrange my own blood draw","description":"\u003cp\u003eFree. Use your own GP, practice nurse or private phlebotomist. We post the kit to you and you take it to them.\u003c\/p\u003e\u003ch3\u003eHow it works\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eWe post your kit to you.\u003c\/li\u003e\n\u003cli\u003eYou arrange a venous draw with whoever you choose.\u003c\/li\u003e\n\u003cli\u003eYour sample is posted the same day it is taken.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eWhat you are taking on\u003c\/h3\u003e\u003cp\u003eOn this route N1 Health cannot accept responsibility for sample quality, labelling or timing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhoever takes your blood needs to write their name and the date and time on the request form.\u003c\/strong\u003e That is a record of when the sample was taken, not an approval — the lab needs it because some markers are only stable for a set number of hours after the draw. A form without it can delay your results.\u003c\/li\u003e\n\u003cli\u003eTubes must be labelled exactly as the kit instructions describe.\u003c\/li\u003e\n\u003cli\u003eThe sample must be posted the same day it is taken, Monday to Thursday.\u003c\/li\u003e\n\u003cli\u003eNot every GP surgery will take blood for a private test. Ask before you order.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhere the lab cannot run your sample as a result, it is treated as a failed sample under our Refunds \u0026amp; Cancellations Policy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBook your draw for a Monday to Thursday.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eA blood draw option must be added to an order containing a profile or panel. It cannot be bought on its own.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852327768,"sku":"N1-D-OWN-BLOOD-DRAW","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/own-blood-draw-v5.png?v=1787608803"},{"product_id":"urea","title":"Urea","description":"\u003cp\u003eOne of the two waste products the kidneys clear. It also moves with hydration and protein intake, so it is read alongside creatinine rather than on its own.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-kidney#m-urea\"\u003eUrea in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e Urea falls after eating.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852393304,"sku":"N1-A-UREA","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/urea-v5.png?v=1787608803"},{"product_id":"creatinine-egfr","title":"Creatinine and eGFR","description":"\u003cp\u003eThe standard basis for estimating kidney filtration. Your estimated glomerular filtration rate (eGFR) is calculated from it and reported alongside at no extra cost.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/biomarker-guide-kidney#m-creatinine\"\u003eCreatinine and eGFR in the Biomarker Guide\u003c\/a\u003e — what it is, why it is tested, and what moves the number.\u003c\/p\u003e\u003cp\u003eAdd-on markers can only be added to venous samples.\u003c\/p\u003e\u003ch3\u003eTiming\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIdeally fasted.\u003c\/strong\u003e Creatinine rises after a meal, particularly cooked meat, and eGFR is calculated from it.\u003c\/p\u003e\u003cp\u003eIdeal, not required. Glucose is the only marker we sell that is invalid unfasted. If fasting does not fit your day, take it anyway and do the same next time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852458840,"sku":"N1-A-CREATININE-EGFR","price":8.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/creatinine-egfr-v5.png?v=1787608803"},{"product_id":"replacement-kit","title":"Replacement Kit","description":"\u003cp\u003eA fresh collection kit and a second run of the tests on an existing order.\u003c\/p\u003e\u003cp\u003eBuy this if your sample could not be tested and you have already used the free replacement on that order, or if your kit has passed its 120-day validity and you want to reactivate it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you buy one:\u003c\/strong\u003e if the lab could not run your sample, or your kit arrived damaged or never arrived, email us first — that is our cost, not yours, and we will not charge you for it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQuote your original order number\u003c\/strong\u003e in the notes before checkout so we know which tests to re-run.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58266852491608,"sku":"N1-R-REPLACEMENT-KIT","price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/replacement-kit-v5.png?v=1787608803"},{"product_id":"tired-all-the-time","title":"Tired All The Time","description":"\u003cp\u003eThe things that most often sit behind persistent tiredness, on one sample. Two ways to take it: a finger prick at your kitchen table, or a fuller venous draw.\u003c\/p\u003e\n\u003ch3\u003eFinger prick — 11 markers, £79\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThyroid Function\u003c\/strong\u003e — TSH, Free T3, Free T4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIron Profile\u003c\/strong\u003e — Iron, Total iron binding capacity, Unsaturated iron binding capacity, Transferrin saturation, Ferritin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVitamin D\u003c\/strong\u003e — 25-OH vitamin D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Vitamin B12\u003c\/strong\u003e — the fraction your cells can actually use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInflammation\u003c\/strong\u003e — hs-CRP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIron is the marker most likely to be lost on a finger-prick sample, and you should know that before you buy.\u003c\/strong\u003e Squeezing the finger to get enough blood ruptures red cells. That is called haemolysis, and it is the most common problem with a finger-prick sample. It destroys 4 of the 5 iron markers. Only ferritin usually survives as it is measured a different way.\u003c\/p\u003e\n\u003cp\u003eA haemolysed sample does not fail this test but it can cost you 4 of the 11 markers, and it keeps the one that carries the answer, because ferritin is what tells you whether your iron stores are low and the hs-CRP tells you whether that ferritin can be read at face value. Warm your hands properly and let the blood drip rather than squeezing, and you make it far less likely. The venous version does not have this problem.\u003c\/p\u003e\n\u003ch3\u003eVenous — 33 markers, £109\u003c\/h3\u003e\n\u003cp\u003eEverything above, plus:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Blood Count\u003c\/strong\u003e — 20 markers, including the red cell measurements that show anaemia and what type it is\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHbA1c\u003c\/strong\u003e — three-month average blood sugar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFolate\u003c\/strong\u003e — the third cause of anaemia alongside iron and B12\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe full blood count, HbA1c and folate are all venous only. The full blood count and HbA1c fail too often on a finger prick to be worth selling that way, and folate is accredited for venous blood only. That is the whole difference between the two routes, and it is a real one: the venous version is the complete anaemia and diabetes picture, the finger-prick version is not.\u003c\/p\u003e\n\u003ch3\u003eBefore your sample\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWarm your hands under running water for a couple of minutes first. Cold hands are the most common reason there is not enough blood.\u003c\/li\u003e\n\u003cli\u003eLet the blood drip. Squeezing or milking the finger is what ruptures the red cells and costs you the iron markers.\u003c\/li\u003e\n\u003cli\u003eWash your hands thoroughly. No hand cream and no makeup on your fingers — iron oxide pigments can interfere with the iron result.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStay well hydrated.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTiming\u003c\/h3\u003e\n\u003cp\u003eTake in the \u003cstrong\u003emorning, ideally fasted\u003c\/strong\u003e. Iron moves with both food and the hour, and thyroid reads a little differently after a meal.\u003c\/p\u003e\n\u003cp\u003eThe morning window matters and so does the fast. Glucose is the only marker we sell that is invalid unfasted, so if you cannot fast, keep the early slot and take it anyway.\u003c\/p\u003e\n\u003ch3\u003eVenous or finger prick\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFinger prick — 11 markers. Venous — 33 markers.\u003c\/strong\u003e Price and marker count both change with the option you choose above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBought separately, the 5 components of the finger-prick build cost £134.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinger prick\u003c\/strong\u003e — you take it at home. No appointment and no draw fee. Collect Monday to Thursday and post the same day. Finger-prick samples fail more often than venous ones; \u003ca href=\"\/pages\/capillary-testing\"\u003ewhat that means\u003c\/a\u003e.\u003cbr\u003e\u003cstrong\u003eVenous\u003c\/strong\u003e — a professional takes the sample. You choose one of the four blood draw options in your basket, before checkout. Book Monday to Thursday and post the same day.\u003c\/p\u003e\n\u003ch3\u003eBefore you order\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/how-it-works\"\u003eHow it works\u003c\/a\u003e — the four blood draw options, what each costs, and the process end to end.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/choosing-a-test\"\u003eChoosing a test\u003c\/a\u003e — what to check before buying any blood test, here or anywhere.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/biomarker-guide\"\u003eBiomarker Guide\u003c\/a\u003e — every marker we run, in plain English.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/body-guide\"\u003eBody Guide\u003c\/a\u003e — what each organ and system actually does.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTurnaround:\u003c\/strong\u003e the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our \u003ca href=\"\/pages\/turnaround-times\"\u003eTurnaround Times\u003c\/a\u003e page.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe do not interpret results. Not medical advice or a diagnosis.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Finger prick","offer_id":58266852557144,"sku":"N1-B-TIRED-ALL-THE-TIME-C","price":79.0,"currency_code":"GBP","in_stock":true},{"title":"Venous","offer_id":58266852524376,"sku":"N1-B-TIRED-ALL-THE-TIME-V","price":109.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/tired-all-the-time-v6.png?v=1787854367"},{"product_id":"inuvi-london-walk-in","title":"London Walk-In","description":"\u003cp\u003e\u003cstrong\u003eLondon only.\u003c\/strong\u003e Walk in to the lab’s own diagnostic centre on Wimpole Street, W1G. No appointment needed.\u003c\/p\u003e\u003ch3\u003eHow it works\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNo kit is posted to you.\u003c\/strong\u003e Once your order is placed the lab contacts you directly to confirm. You walk in whenever suits you, Monday to Friday between 07:00 and 19:00, taking photographic identification with you. Their own team checks your identity, takes your sample, and it goes straight into the lab in the same building — there is nothing for you to bring and nothing for you to post.\u003c\/p\u003e\u003ch3\u003eWhat to take with you\u003c\/h3\u003e\u003cp\u003ePhotographic identification — a passport, driving licence or similar. They will check it before taking your sample. That is all you need.\u003c\/p\u003e\u003ch3\u003eChanges and cancellations\u003c\/h3\u003e\u003cp\u003eThere is nothing to cancel. You have not booked a slot, so there is no cancellation fee and no charge for not turning up.\u003c\/p\u003e\u003ch3\u003eBefore you choose this\u003c\/h3\u003e\u003cp\u003eThis is a single site in central London. Your order stays open for \u003cstrong\u003e120 days\u003c\/strong\u003e from the day you place it, so if you are not going to be in W1 within that time, pick one of the other routes instead. After 120 days we can reopen your order for a £20 reactivation fee.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eA blood draw option must be added to an order containing a profile or panel. It cannot be bought on its own.\u003c\/em\u003e\u003c\/p\u003e","brand":"N1 Health","offers":[{"title":"Default Title","offer_id":58275780657496,"sku":"N1-D-LONDON-WALK-IN","price":40.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1533\/1928\/files\/inuvi-london-walk-in-v5.png?v=1787694064"}],"url":"https:\/\/n1health.co.uk\/collections\/all-tests.oembed","provider":"N1 Health","version":"1.0","type":"link"}