The Blackmores difference
Biotin is an essential vitamin for the skin, hair and nails. Biotin may strengthen brittle nails and reduce breaking and splitting. It also may increase nail thickness.
Silica is found in all connective tissue including nails, hair and skin, where it contributes to collagen formation. Collagen serves as part of the structural framework for skin.
Zinc is essential to help maintain healthy nails, hair and skin.
Vitamin C is an antioxidant.