This test measures vitamin B3 (niacin), a nutrient involved in converting food into energy, skin health and the nervous system. It suits people who want to check for a possible niacin deficiency as part of monitoring their nutrition.
1 biomarker as listed by Medichecks.
Niacin (vitamin B3) is involved in converting food into energy and in supporting skin health and the nervous system. This test checks that one marker, which can help identify a potential deficiency if you are monitoring your general nutritional status.
As a single-marker test, clinical depth here sits below the middle of the vitamin tests we track, and price runs a little above average: £99 against an £85 median for similarly sized vitamin tests. There is no at-home option, so the sample needs a venous draw at a clinic or via a home nurse visit, with results typically ready in around 8 days.
Trust signals remain strong, built on the provider's Trustpilot record, lab accreditation and trading history, and every result includes a doctor's review before you see it.
This suits you if you have a specific reason to check niacin levels, for example as part of monitoring general nutrition or investigating symptoms your GP has flagged, and you are comfortable with a venous blood draw. If you want to check several vitamins at once rather than niacin alone, a broader nutrition panel will likely give you more for a similar outlay.
We do not have a directly comparable single vitamin B3 test logged elsewhere, so we cannot confirm whether a cheaper option exists.
The sample is taken as a venous blood draw, either at an in-store clinic or via a home nurse visit; there is no finger-prick option. The lab tests for vitamin B3, a doctor reviews the result, and your report is typically ready in around 8 days.
At £99, this test measures vitamin B3 (niacin) alone, costing somewhat more than the £85 median for similarly sized vitamin tests we track. It requires a venous blood draw at a clinic or home nurse visit, with results back in around 8 days. No comparable test is logged in this group to confirm if a cheaper option exists.
The listing publishes a short description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.
1 biomarkers, placing it in the 31st percentile of vitamins tests we track.
A blood sample taken at home by a visiting nurse or phlebotomist; with a venous or clinic option as well; a home nurse visit is offered; results in around 8 days, slower than similar tests.
Results are reviewed by a doctor; the provider does not describe the report format.
Trustpilot 4.5 from 2,477 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 25+ years.
£99.00 against a median of £85.00 for the 73 similarly sized vitamins tests we track (+16%).
Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.
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