Source Naturals, Biotin, 5,000 mcg, 120 Tablets

Dietary Supplement Non-GMO Validated Hair, Skin, and Nail Support Biotin is a water-soluble vitamin required by our bodies to maintain healthy hair and skin. Preliminary evidence also suggests that biotin can promote healthy nails. Its involvement as a coenzyme in carbohydrate, protein, and fat metabolism also supports our metabolic processes that burn fuel and produce energy, as well as supporting the normal functioning of the nervous system.