Sundown Naturals Dissolvable Vitamin B12 500mcg

Vitamin B12 is a member of the B vitamin family, and like the others, it is water soluble and must be consumed daily to support a variety of bodily functions.  Vitamin B12 is well-known for its role in red blood cell formation, as well as its ability to reduce fatigue. 
Vitamin B12 supports normal energy metabolism, healthy psychological function, and the nervous system.