Dietary Supplement Scientifically designed to support beauty from within 3000 mcg biotin Lutein for healthy, hydrated skin* Gelatin and amino acids for strong nails* GNC Women"s Hair, Skin & Nails Formula is a specialty formula, scientifically designed to include ingredients that support beautiful hair, skin and nails.* Biotin - Found in the matrix of the hair, skin and nails, biotin supports normal cell growth.* Each serving features 3000 mcg of biotin for beautiful hair, skin and nails.* Lutein - Helps to support skin hydration.* Lutein is an important carotenoid antioxidant for healthy skin.* Gelatin and amino acids - Combines gelatin with the amino acids L-cysteine and L-methionine. Amino acids are the building blocks of proteins that are needed for strong, healthy nails and the growth and repair of tissue.* Antioxidant protection - Provides antioxidant nutrien