Provides 3 mg of biotin for the support of nervous system and circulatory system health.*Biotin is a water-soluble B vitamin that acts as a coenzyme for many biochemical processes. It is an essential component for the conversion of carbohydrates to energy, and is involved in the proper metabolism of fats and proteins.* Furthermore, adequate biotin levels are needed for healthy nervous system function and for healthy nails, hair, and skin.* Complete B vitamin complex with 3 mg of biotin per tablet Includes vitamin C and zinc for additional immune support* Also available as a 5 mg biotin formula without zinc.