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Vitamin B12 Test


Vitamin B12 level

This finger prick blood test analyses your Vitamin B12 level. This vitamin is essential for healthy nerves, blood cells and DNA.

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In stock   |   Free Delivery

About this product

This finger prick blood test analyses your active Vitamin B12. Active Vitamin B12 is essential for healthy nerves, blood cells and DNA.

Vitamin B12 is one of the eight B vitamins. As a water-soluble vitamin it is responsible for neurological function, producing DNA, maintaining a healthy nervous system and generating red blood cells which carry oxygen around your body. It is also an essential nutrient in pregnancy.

What is Included?

 Home Finger Prick Blood Test Kit

✓ Recorded, next day delivery of your test kit (if booked before 3.30pm Mon-Thur)

 24hr Tracked Royal Mail Return

 Results 2-3 working days from receipt by the laboratory

 Patients emailed with results plus analysis and health advice by a ZoomDoc GP


When to test

You should take the test if:
  • You are suffering from chronic fatigue or exhaustion
  • You are following a plant-based diet
  • You are planning on becoming pregnant
  • You are over the age of 50
  • You suffer from Crohn’s or coeliacs disease
  • You are deficient in the intrinsic factor, a glycoprotein which plays an important role in absorbing vitamin B12

We advise patients to only undertake the Vitamin B12 home test Monday to Thursday and then send it directly back to ZoomDoc. This ensures that there are no delays in receiving your test kit at our partner laboratory.


Specific biomarker within this test includes:

  • Vitamin B12

Frequently Asked Questions

  • How accurate are ZoomDoc Wellness Tests?

    ZoomDoc finger prick blood tests are as accurate as tests you would normally take via a normal regular blood test at hospital or in a GP setting.

    All tests are analysed in labs in the UK and are UKAS & ISO 15189 accredited.

    All of our partner laboratories undergo frequent quality control checks to ensure they meet the highest standard of testing. The equipment and analysers used are all designed for the specific function of capillary blood testing. All ZoomDoc test kits come with clear instructions.

  • What laboratories do ZoomDoc use?

    All laboratories that ZoomDoc use are UKAS & ISO 15189 accredited.

    Most samples are analysed at The Doctors Laboratory which is based in Central London. This lab is the largest private laboratory in the UK.

  • How are my B12 results reviewed?

    All Wellness Test results are analysed by our team of Doctors.

    They will comment on your results and often provide both advice and health recommendations.

    If there are any worrying results our Doctors will get in touch and advise on next steps.

  • Can I discuss my results with a ZoomDoc GP?

    Our team of GPs are always on hand via the ZoomDoc app to discuss any queries or questions you may have with your results or wellness tests.

  • What will happen after I purchase a Wellness Test?

    After purchase of this PSA test kit, it will be immediately dispatched to your home or workplace.

    After it arrives, you must activate the test with the details of the patient undertaking the test. There are full instructions on the test kit box.

  • Can aI give this Wellness Test Kit to someone else?

    Yes, if you receive or order a wellness test kit and want to gift it to someone else, you can do this. However, the test must always be activated with the personal details of the individual taking the test.

Get in touch
We’re happy to help

If you have any queries please check our list of frequently asked questions or get in touch with one of our experts who will be happy to help.

How to take your home blood test

In stock

In stock   |   Free Delivery