Vitamin B-12 is a water-soluble B-vitamin that's essential for normal blood cell formation and supports energy metabolism in the body. This product features two forms of Vitamin B-12: cyanocobalamin, which is the pre-converted form of B-12, and methylcobalamin, the active form of this nutrient which cyanocobalamin is converted into in the body.These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.