Herbs of Gold Silica Hair Skin and Nails is a high-strength, comprehensive formula that supports the health of connective tissue including hair, skin and nails. It is a unique complex that contains essential nutrients that maintain the health of hair, skin and nails. It contains silica that plays an important role in hair health, helping to maintain hair strength and thickness. Silica maintains healthy skin by assisting connective tissue and collagen production to support skin elasticity and structure. Silica Hair Skin and Nails contains antioxidants vitamin C and zinc to reduce free radicals formed in the body and support wound healing. Silica Hair Skin and Nails contains biotin (otherwise known as vitamin B7) and silica to support nail strength and health. As a high-strength nutritional complex, Silica Hair Skin and Nails maintains biotin, vitamin A and zinc levels in the body and supports general health and wellbeing. Size: 60 Tablets.