Vitamin B12 Blood Test

Vitamin B12 Blood Test

Vitamin B12 is a so-called essential vitamin. This means that the body cannot produce it or cannot produce it to a sufficient degree by itself. Vitamin B12 can be produced in very small amounts by bacteria in the small intestine. Without a regular supply of vitamin B12 via food, human health can be adversely affected. Tiredness, exhaustion, headaches, difficulty concentrating, digestive problems and depression can all be signs of a low vitamin B12 level. People with high stress levels, vegans, vegetarians, pregnant women and seniors all have an increased risk of vitamin B12 deficiency.

Vitamin B12 is involved in cellular energy production and can thus support physical performance.

Test your vitamin B12 levels easily and conveniently from home!

The cerascreen® Vitamin B12 Test is a sample submission kit for at-home use. The test is used to determine the concentration of vitamin B12 and to monitor the holotranscobalamin vitamin B12. The Vitamin B12 test includes free return mailing and evaluation in our specialised diagnostics laboratory as well as a detailed results report. Receive your results within 3-4 business days after the sample has arrived in the laboratory.

Regular price £39.00 including VAT
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Determine your vitamin B12 balance conveniently at home

Your personal test results


Sample Report

As soon as your sample has been evaluated, you will be able to view your individual results report in the my cerascreen® mobile app or our secure online customer area where you can also print the report.


Result of laboratory analysis: These are your blood levels of Holo-Transcobalamin, the active vitamin B12.

Individualised practical recommendations: You will receive recommendations on how to improve vitamin B12 levels that are too low.

Important health information: We explain why vitamin B12 is so important and how it enters the body.

View Sample Report

Free health advice

Do you still have questions about your test results? We offer free heatlh advice from our nutritionist by telephone— in English. During your 15 minute coaching session, our nutrition expert will explain to you not just what your results mean, but also about health in general, test taking, and answer questions about further tests. Further Information can be sent to you by Email upon request. To book our free health advise please follow the link in your results report.


Vitamin B12 is involved as a coenzyme in the following metabolic processes:

  • DNA formation
  • Nerve protection and regeneration
  • Cell division and respiration
  • Blood cell formation
  • Synthesis of neurotransmitters
  • Detoxification

How the vitamin B12 test works


Certified, reliable and accurate

cerascreen laboratory

We focus on delivering trustworthy and accurate results by working with the best accredited and certified laboratories that regularly participate in interlaboratory proficiency testing. Our goal is to always ensure a high level of quality and competency. All our partners are laboratories that provide extensive experience and are trusted as well as utilised by physicians all across Europe. Our setup of using anonymous Test-IDs ensures maximum data protection and privacy.

We use the highest certification standards for quality management:

  • ISO 9001
  • EN ISO 13485
  • Interlaboratory proficiency testing

The vitamin B12 test kit consists of

cerascreen vitamin b12 test unboxed

  • Several pages of illustrated instructions, explaining step by step how a blood sample is taken and how the test is performed
  • Activation card with test ID for registration
  • Disinfection cloth, swab, plaster, 2 lancets CE 0344, blood collection tube, transport tubes
  • Pre-addressed and pre-paid return mailing envelope, which you can use to send your blood sample back to the laboratory free of charge using Royal Mail

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