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Vitamin B12 Test (Active)

The Active-B12 is an innovative method for assessing Vitamin B12 status and offers improved accuracy, sensitivity and specificity over current laboratory methods. (Subscribe and track your B12 levels)

Results expected within: 2 working days

Vitamin B12 Test (Active)

What is this test for?

Vitamin B12 and folate are primarily requested to help diagnose the cause of macrocytic anaemia. Folate and vitamin B12 may be used to help evaluate the nutritional status of a patient with signs of significant malnutrition or malabsorption. This may include those with alcoholism and those with disorders associated with malabsorption such as coeliac disease, Crohn’s disease, and cystic fibrosis. B12 and folate may also be used to help diagnose the cause of mental or behavioural changes, especially in the elderly.
In patients with known vitamin B12 and folate deficiencies, these tests may be used occasionally to help monitor the effectiveness of treatment. This is especially true in patients who cannot absorb vitamin B12 and/or folate and must have lifelong treatment.


Symptoms of a possible B12 deficiency include:

  • Symptoms related to anaemia
  • Reduced sense of taste
  • Diarrhoea
  • Numbness and tingling in the feet and hands
  • Muscle weakness
  • Depression

What will this test kit find out?

We can test for a range of different allergies and health markers, using one of our home-testing kits. In this kit, you'll be able to test:

Vitamins - Active B12

Indicators of potential vitamin deficiency

  • Active B12

How to use this test kit



Once you've got your kit, make sure to read all of the enclosed instructions - they'll make sure you easily and safely get the best sample possible.



Time to take your sample. All of our health tests come with the exact tools you need to take a sample in the comfort of your own home.



Put your sample in the prepaid envelope provided and pop it in the post. Now you can sit back and relax - we'll let you know when your results are ready.

Using our blood sample kit

What's in this test kit?

Sterile swabs
Safety lancets
Prepaid return envelope
Blood collection instructions
Blood collection bottle
  • Sterile swabs

  • Safety lancets

  • Plasters

  • Prepaid return envelope

  • Blood collection instructions

  • Blood collection bottle