Since inner health often reflects on the outside; that is, your face and skin, biotin helps keep you looking beautiful. Biotin plays a key role in the body. It supports the health of the skin, nerves, digestive tract, metabolism, and cells. Biotin 10k is designed to provide ample amounts (10,000 mcg) of this essential nutrient to maximize its benefits. Biotin helps to support healthy skin, hair & nails. Biotin also supports the metabolism of carbohydrates, fats & proteins for energy use.