Nature's Bounty Hair Skin & Nails with Biotin is a multivitamin supplement. This multivitamin supplement helps maintain the overall health of nails, skin and hair. The formula contains a number of vitamins such as Vitamin A, B, C, D, E, B1, B2, B6 and B12 along with the essentials amount of minerals and antioxidants. Together the combination of these nutrients promote the health of hair, skin and nails. It also includes biotin which is known for its key role in making hair and nails strong and hyaluronic acid that contributes to the smooth and hydrated condition of skin.