B vitamins are essential nutrients required for optimal health and functioning of numerous systems and biochemical reactions in the body, including energy production, brain, liver and nerve cell function, and muscle tone in the GI tract.† Activated forms of folate (Metafolin L-5-methyltetrahydrofolate) and vitamin B12 (methylcobalamin) are used for enhanced absorption and bioavailability. This high-potency B-complex vitamin supplement is formulated to be hypoallergenic and yeast free.