Biotin and selenium contribute to the maintenance of normal hair. Food supplement based on soluble keratin (Cynatine®), catalase, reduced glutathione, Rehmannia glutinosa libosch (Verbasnol®), iron (Ferrochel®), vitamins and minerals. Benefits by ingredient Contributes to the maintenance of normal hair. Contributes to normal hair pigmentation and normal iron transport in the body. Contributes to normal DNA synthesis. Contributes to the maintenance of normal nails. Contributes to the protection of cells against oxidative damage.