B-Complex Vitamins are needed by the body for energy production, synthesis of hormones and blood cells, healthy nervous system function, and numerous other metabolic processes. The forms of the B Vitamins found in foods and most supplement, however, are not readily utilized by the body. They require conversion into their active forms before they can perform their functions as cofactors in bio-chemical reactions. NOW Co-Enzyme B-Complex contains B Vitamins already in their active or "Coenzyme" forms. This enables the body to use them more quickly and efficiently because once absorbed, they are transported directly to their site of action, requiring no conversion. NOW Co-Enzyme B-Complex tablets are enteric coated to enhance bioavailability and delivery to intestinal absorption sites intact, unharmed by stomach acids.