A three-marker blood test measuring active vitamin B12, folate and vitamin D, for checking common nutrient deficiencies linked to energy, mood and immune health.
3 biomarkers as listed by Thriva.
This test measures active vitamin B12, folate (vitamin B9) and vitamin D. Active B12 measures the amount of B12 your body can actually use, and both B vitamins are linked to nervous system health, mood and sleep, while vitamin D supports bone and immune health. The provider suggests repeating the test every 3 months if you have a known deficiency.
Within its comparison group of 4 vitamin B12 and folate tests, this matches the median on depth, 3 markers, and sits almost exactly at the £82.45 median price, about 1% below. It is close in both price and marker count to Medichecks' £74 test and London Medical Laboratory's £89 Vitamin Profile, both of which also measure 3 markers.
It scores highly for clinical depth relative to its group and for collection convenience, with an at-home finger-prick option and results in 2 days. Its value for money score sits in the middle, reflecting a price right at the group median rather than a clear bargain or an outlier on cost.
This suits someone checking for vitamin D, B12 or folate deficiency, for example if experiencing fatigue, low mood or poor sleep, who wants a straightforward, doctor-reviewed result. Medichecks' equivalent 3-marker test is slightly cheaper at £74, so it is worth comparing if price is the deciding factor.
You take this test at home with a finger-prick sample, or add a nurse-taken venous draw for £60. The lab analyses your sample and a doctor reviews the results before you see your report, typically within 2 days.
At £81.90, this sits almost exactly at the £82.45 median across the 3 vitamin B12 and folate tests we compare, and its 3 markers match the group median. It is slightly pricier than Medichecks' £74 equivalent but cheaper than London Medical Laboratory's £89 version.
The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.
3 biomarkers against a median of 3 across the 4 tests in its comparison group.
A finger-prick sample you take at home; with a venous or clinic option as well; a home nurse visit is offered; results in around 2 days, in line with or faster than similar tests.
Results are reviewed by a doctor; the provider does not describe the report format.
Trustpilot 4.6 from 3,195 reviews; accredited lab (UKAS ISO 15189 / ISO 17025 partner labs); CQC registered; doctor review as standard; trading 11+ years.
£81.90 against a comparison-group median of £82.45 (-1%).
Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.
This test belongs to our Vitamin B12 and folate comparison group. See how it stacks up against equivalent tests from other providers.
Cheapest 3-marker B12, folate and ferritin test here
This test measures active B12, folate and ferritin together, three markers linked to energy, red blood cell production and possible anaemia. It suits people with fatigue, dizziness or a suspected deficiency who want a broader check than a single marker.
8% above median, bundles three vitamins in one draw
A three-marker blood test covering folate, vitamin B12 and vitamin D together, for a broader nutritional check than a single-vitamin test.
Pricier and narrower than Medichecks' own 3-marker test
This test measures active vitamin B12 and folate, two nutrients involved in energy, brain function and red blood cell production. It suits people who want to check both markers together, such as vegans, vegetarians or those with absorption issues.
Cheapest 3-marker B12, folate and ferritin test here
This test measures active B12, folate and ferritin together, three markers linked to energy, red blood cell production and possible anaemia. It suits people with fatigue, dizziness or a suspected deficiency who want a broader check than a single marker.
8% above median, bundles three vitamins in one draw
A three-marker blood test covering folate, vitamin B12 and vitamin D together, for a broader nutritional check than a single-vitamin test.
Pricier and narrower than Medichecks' own 3-marker test
This test measures active vitamin B12 and folate, two nutrients involved in energy, brain function and red blood cell production. It suits people who want to check both markers together, such as vegans, vegetarians or those with absorption issues.
