Nature's Bounty Biotin, Vitamin Supplement works as a source of nutrition to grow healthy. It contains Biotin, which is a water soluble vitamin found in oatmeal, vegetables and soy. The intake of this supplement helps convert food into energy and utilize it as per body's requirement. This supplement is made to provide protein, carbohydrates, vitamins and more as an energy source. It also provides nourishment to skin, hair and nails. It helps maintain their health and shine.