Biotin is a water-soluble B vitamin that contributes to several functions in the body including energy metabolism. Perhaps best known for its beauty supporting benefits, a daily dose of Solgar\'s Biotin 5000 mcg can help support healthy looking hair and skin. Although Biotin deficiency is rare it may result in thinning hair, brittle nails and a red scaly rash around the mouth and eyes. As the body doesn\'t make or store biotin, additionally, a daily dose of this B vitamin can help maintain the biotin levels your body needs. Biotin: Contributes to improvement of nails resistance Contributes to maintenance of normal skin Is necessary for healthy teeth, bones, hair and nails Contributes to maintain energy-yielding metabolism and general vitality Contributes to normal functioning of the nervous system