Biotin is a water-soluble vitamin necessary for normal growth & body function. Biotin is a key regulatory element in gluconeogenesis, fatty acid synthesis, & in the metabolism of some amino acids. Alongside its role in energy production, Biotin enhances the synthesis of certain proteins. In addition, Biotin promotes normal immunity & plays a critical role in skin health.* As a dietary supplement, take 1 capsule daily with a meal. Consider taking this product in combination with NOW® B-Complex vitamins. Gelatin (capsule), Rice Flour, Magnesium Stearate (vegetable source) & Silica.