Dietary Supplement Biotin is a water-soluble vitamin necessary for normal growth and body function. Biotin is a key regulatory element in gluconeogenesis, fatty acid synthesis, and 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 and plays a critical role in skin health.* Free of: sugar, salt, yeast, wheat, gluten, soy, milk or preservatives. *This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.