Active B12

FDX 75

Also known as holotranscobalamin also see Vitamin B12. Active B12 accounts for approximately 10 to 20% of total B12 levels. Considered to be a more sensitive marker than serum B12 as it degrades faster serum B12 with a short life span.


Suitable for:

Key Biomarkers


Active B12

You will need a main test first