Clinics charge as much as $250 per B12 shot. We charge as little as $3.

The Active-B12 Test (Holotranscobalamin)

Vitamin B12 Symposium

The scientific congress met in France to review findings in the area of B12 deficiency diagnosis.

Why Is Active B12 Useful?

The clinical utility of the active-B12 test, and the correlation between active B12 and total B12.

Active-B12 Case Reports

Case reports that show how the use of the active-B12 test could help reach a correct diagnosis.