Biotin

Biotin, also known as vitamin B7, is a water-soluble vitamin that is part of the B-complex group of vitamins. It plays a crucial role in metabolism, helping the body convert food into energy, and is essential for the health of skin, hair, and nails. Biotin is often used as a supplement to support healthy hair and skin, and it is commonly found in many over-the-counter products for hair health.