Evonia Biotin Plus 5 mg is a strong biotin capsule, which nutrients support healthy hair, nail and skin structure. Biotin contributes to the maintenance of normal hair and skin. Zinc contributes to the maintenance of normal hair and nails. Vitamins C and B2 are important for skin. The capsules also contain MSM, methylsulfonylmethane, and cysteine as well as vitamin B6, which contributes to normal cysteine synthesis, and molybdenum, which contributes to normal sulphur amino acid (such as cysteine) metabolism.