Vitamin B12 (Active) Folate and Ferritin Blood Test

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.

  • Doctor reviewed
Sample
Blood
Collection
In-store clinic or home nurse visit or venous draw at clinic
Results in
4 days
Biomarkers
3
Doctor reviewed
Yes
Tests for
  • Ferritin
  • Folate - serum
  • Vitamin B12 - active

Test specifications

Provider
Medichecks
Sample type
blood
Collection method
in-store clinic or home nurse visit or venous draw at clinic
Turnaround time
4 days
Biomarkers tested
3
At-home test
No
Doctor reviewed
Yes
Gender focus
Both

What's tested

3 biomarkers as listed by Medichecks.

Iron status

  • Ferritin

Vitamins

  • Folate - serum
  • Vitamin B12 - active

About this test

Active B12, folate and ferritin together give a broader picture of possible deficiency than checking B12 alone: B12 and folate support energy and red blood cell production, while ferritin reflects your iron stores, which is useful if you have symptoms like tiredness, dizziness or a suspected anaemia.

This test matches the median of three biomarkers seen across the vitamin B12 and folate tests we track, and on price it is the strongest in its group: £74 against a median of £82.45, undercutting Thriva's £81.90 three-marker test, London Medical Laboratory's £89 Vitamin Profile, and even Medichecks' own two-marker Vitamin B12 (Active) and Folate Blood Test at £83, which covers less for more money.

Collection requires a venous blood draw at a clinic or via a home nurse visit, which holds back the collection convenience score, while trust signals stay strong thanks to the provider's Trustpilot record, lab accreditation and trading history, and every result is reviewed by a doctor.

Who is it for?

This is a strong choice if you want a broader deficiency check than a single B12 test, for example if you have fatigue, dizziness, or a GP has suggested checking for anaemia alongside B12 and folate. Among the comparable three-marker tests we track, it is the cheapest, and it also beats Medichecks' own narrower two-marker version on both price and depth.

If you specifically want to avoid a clinic visit, note that this test requires a venous draw rather than an at-home finger-prick.

How it works

The sample is taken as a venous blood draw, either at an in-store clinic or through a home nurse visit; there is no finger-prick option. The lab tests for active vitamin B12, folate and ferritin, a doctor reviews your results, and your report is typically ready in around 4 days.

Pros & cons

Pros

  • Cheapest of the comparable three-marker B12, folate and ferritin tests we track, at £74.
  • Covers ferritin as well as B12 and folate, useful if anaemia is a possibility.
  • Cheaper and broader than Medichecks' own two-marker Vitamin B12 (Active) and Folate test.
  • Results reviewed by a doctor, typically within around 4 days.

Cons

  • No finger-prick kit for this one; the sample is taken as a venous draw.
  • Still slower to collect than Medichecks' single-marker B12 test, which allows a finger-prick.

Our editorial score

Compare Health Test Score Cheapest 3-marker B12, folate and ferritin test here
Editorial confidence: 10.0/10

At £74, this three-marker test covering active B12, folate and ferritin is the cheapest option in its comparison group, undercutting Thriva's £81.90 equivalent, Medichecks' own two-marker Vitamin B12 (Active) and Folate test at £83, and London Medical Laboratory's £89 Vitamin Profile. It requires a venous draw at a clinic or home nurse visit, with results back in around 4 days.

Score breakdown

  • Clarity and documentation 8.0/10

    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.

  • Clinical depth 9.0/10

    3 biomarkers against a median of 3 across the 4 tests in its comparison group.

  • Collection convenience 8.0/10

    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 4 days, slower than similar tests.

  • Results and follow-up 7.0/10

    Results are reviewed by a doctor; the provider does not describe the report format.

  • Trust signals 9.5/10

    Trustpilot 4.5 from 2,477 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 25+ years.

  • Value for money 7.2/10

    £74.00 against a comparison-group median of £82.45 (-10%).

Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.

Compare with similar tests

This test belongs to our Vitamin B12 and folate comparison group. See how it stacks up against equivalent tests from other providers.

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Vitamins blood test

Matches the group median on both depth and price

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.

  • At-home test
8.5 / 10

Vitamin B12 (Active) and Folate Blood 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.

7.3 / 10