Collagen, contributes to the prevention of organ in the body, and welding the organs together help structure of the body strong and flexible. Help joints move back and forth smoothly.Like walking or running, etc. in addition, collagen is also allows the skin's moisture. Extra smooth, tight skin. Makes the skin look smooth. By working together with another protein, named "elastin." (Elastin).Collagen, a virtual layout skin elastin. Do give elasticity to the skin. A couple together