Promotes Healthy Hair, Skin, and Nails: Restore the health of your hair, radiance of your skin and strength of your nails with Natrol Biotin, an important B Vitamin that has long been known as a key element in maintaining healthy hair, skin and nails Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery Increase Energy: Biotin, a B vitamin also known as vitamin H or B7 helps support the metabolism and assists in the conversion of food into energy