Now Biotin 5000 mcg Vegetarian Capsules For Energy Production helps you get adequate amounts of this essential nutrient for improved effectiveness. Biotin is a water-soluble vitamin necessary for normal growth and body function. Biotin functions as a key regulatory element in gluconeogenesis, fatty acid synthesis, and in the metabolism of some amino acids. Biotin is necessary for formation of fatty acids and glucose, which are used as fuels by the body. It is also important for the metabolism of amino acids and carbohydrates. A lack of biotin is rare. However, if you have Crohn’s disease, which limits the absorption of essential nutrients in the small intestine, you can likely have a biotin deficiency. If it occurs it may lead to skin rash, loss of hair, high blood levels of cholesterol, and heart problems. Alongside its role in energy production, Biotin enhances the synthesis of certain proteins. In addition, Biotin promotes healthy immune system function and plays a critical role in skin health. This extra strength product is 10 mg Biotin as compared to Now's other Biotin products - 1 mg Biotin and 5 mg Biotin.