Source Naturals MethylCobalamin (B-12) 5mg 60T Sublingual

Methylcobalamin is an active coenzyme form of
vitamin B-12 that is more bioavailable that the common form,
cyanocobalamin. B-12 is essential for healthy red blood cells, energy
level, and DNA production, and plays an important role in maintaining
normal nerve function. Older people tend to have less stomach acid,
which may result in less absorption of B-12 from food. Supplementing
with Source Naturals Methylcobalamin B-12 can help ensure adequate intake.

Vitamin B-12 (as methylcobalamin)