Gnc women's collagen: supports healthy skin structure gnc women's collagen supports and nourishes the skin. Collagen is the most abundant protein in the body and is a major component of skin, bones, tendons, ligaments and cartilage. As we age, collagen synthesis declines, which may contribute to signs of aging. That’s why collagen is known as the beautiful skin protein. Gnc women's collagen is formulated with a blend of ingredients to support beautiful skin from within. In addition to collagen, they contain hyaluronic acid which supports skin repair and hydration. They also contain vitamin c which supports the production of collagen in the body and acts as an antioxidant. Collagen to support healthy skin structure hyaluronic acid to help maintain skin elasticity vitamin c for antioxidant and immune support.