Vitals Vitamin B12 1000 mcg (methylcobalamine) (100 lozenges)

Vitamin B12 1000 mcg (100 lozenges) consists of lozenges containing the biologically active form methylcobalamin. This is one of the forms of vitamin B12 as found in food and used by the body. Many other vitamin B12 products use cyanocobalamin, a synthetic form that is so not found in nature. In cases of oxidative stress, supplementation with a reduced form of vitamin B12 (such as methylcobalamin) may have benefits over an oxidized form of vitamin B12 (such as cyanocobalamin). B12 is stored in the liver and less B12 leaves the body with the urine (longer half-life). Thus, bioavailability is greater.