Dietary supplement that contributes to the maintenance of hair, skin and nails in normal conditions. 100% vegan. Zinc contributes to the maintenance of skin, nails and hair in normal conditions. Vitamin B2 contributes to the maintenance of skin in normal conditions. Vitamin B6 contributes to the normal synthesis of cysteine. Vitamin B8 (Biotin) contributes to the maintenance of normal skin and hair. Cysteine is an amino acid that is part of the structures of the skin and nails.