Nature's Answer, Marine Collagen Unflavored, 4.8 OzProduct Description Marine collagen has long been treasured by the chinese for what they believe is its natural youth enhancing ability. Collagen is naturally found in the skin, cartilage, tendons, bones, and ligaments. The word collagen comes from the word kola, the Greek word for glue. As we get older, our bodies produce less collagen, which interferes with keeping skin smooth and joints supple. Marine collagen supports healthy hair, skin, and nails