Fortified with biotin and lutein, Natrol® Biotin Plus supports healthy hair, skin and nails for those low in Biotin. These tablets contain 10mg Lutein - clinical strength skincare shown to help improve skin elasticity and hydration when taken daily. They help support energy metabolism and aid in the conversion of food into energy. Supports healthy hair, skin & nails for those low in biotin plus lutein for improved skin elasticity & hydration.