Compare Vitamin B12 test

Vitamin B12 (Active) Blood Test

Tied for cheapest single B12 test, with fast results

This test measures active vitamin B12 on its own, the form of B12 that is actually available for your body to use. It suits people with possible deficiency symptoms, such as fatigue, low energy or memory problems, or a diet or condition that raises their risk.

• At-home test
• Doctor reviewed
• 1 biomarkers
• Results in 2 days

Vitamin B12 Active

Fast at-home B12 test, near the median price for its group

Checks active B12 (holotranscobalamin), the form of vitamin B12 taken up and used by your cells, from an at-home sample. Suited to a quick, flexible check on B12 status, including for vegetarians and vegans, who are more at risk of low B12.

• At-home test
• Doctor reviewed
• 1 biomarkers
• Results in 1 day

Vitamin B12 Total

Flexible collection, price close to the group average

This blood test measures total vitamin B12, the standard marker for checking B12 status. It suits people who want a straightforward single-marker check rather than the added detail of active B12 or related markers.

• At-home test
• Doctor reviewed
• 1 biomarkers
• Results in 1 day

Vitamin B12

Joint-cheapest B12 test in its comparison group

A single-marker blood test measuring vitamin B12, useful for checking deficiency risk, particularly on a plant-based diet.

• At-home test
• Doctor reviewed
• 1 biomarkers
• Results in 1 day

Vitamin B12 Home Blood Test Kit

Priced above the median for active B12 tests we track

A single-marker blood test measuring active vitamin B12, suited to people at risk of deficiency, including vegetarians and vegans.

• At-home test
• Doctor reviewed
• 1 biomarkers
• Results in 2 days

Vitamin B12 Quickdraw Test

At-home B12 test priced right at the group median

An at-home blood test measuring vitamin B12 levels, useful for vegans, vegetarians and anyone with symptoms of low energy or tiredness that could point to a deficiency.

• At-home test
• 1 biomarkers
• Results in 2–3 days

Vitamin B12 Home Test Kit

Mid-priced B12 kit, well under Better2Know's clinic price

This at-home finger-prick test checks your vitamin B12 level, a nutrient needed for healthy blood and nerve cells. It suits people who want a quick, independent check for a B12 deficiency without a clinic visit.

• At-home test
• 1 biomarkers
• Results in 1 day

Vitamin B12 Test

Priciest B12 test in a group full of £39-55 options

A single blood test that measures your vitamin B12 level, useful if you want to check for a deficiency affecting energy, mood or nerve health.

• 1 biomarkers
• Results in 1 day

Vitamin B12

Among the priciest B12 tests we compare, bar one

A single blood test measuring Vitamin B12, commonly used to assess levels relevant to nerve function and red blood cell production. Useful for vegans, vegetarians or anyone with absorption concerns.

• 1 biomarkers
• Results in 3–8 days

Vitamin B12 Test

Why Take the Vitamin B12 Test? Vitamin B12 is a vital nutrient that plays a crucial role in maintaining overall health.

• At-home test
• 1 biomarkers
• Results in 3 days