Swisse Ultiboost Hair Skin Nails liquid is a comprehensive formula containing premium quality ingredients to support the production of collagen and provide essential nutrients for healthy hair, skin and nails. This unique great tasting beauty formula contains silica and vitamin C to support the building blocks of hair, skin and nails and maintain their health and appearance. Blood orange extract is also included for its antioxidant properties. Silica is part of the mineral matrix that supports collagen structure. Collagen is a major structural protein for healthy and strong connective tissue, blood vessels, tendons and ligaments and helps maintain skin integrity and appearance. Vitamin C assists with collagen production and provides antioxidants to protect cells from potential free radical damage. The blood orange extract included in Swisse Ultiboost Hair Skin Nails has been extracted from the juice and peel of three varieties of Sicilian blood oranges, grown in the rich soil.