Natrol Skin, Hair & Nails is a well-rounded beauty supplement for glowing skin, lustrous hair and stronger nails. The powerful formula includes biotin to help promote the lustrous hair and strong nails associated with health and vitality. Clinical strength lutein, that when taken daily has been clinically shown to improve skin elasticity and hydration to keep skin looking younger longer. Collagen and Hyaluronic Acid help keep skin firm. Vitamins A, C and E help protect against free radicals and oxidative damage from pollution and harmful UV rays. Plus, Vitamin D, B12, B6, minerals like Copper and Zinc, and Alpha-Lipoic Acid (ALA) and Horsetail round out this nutrition and beauty powerhouse.