Cartilage is a firm, rubbery material that covers the end of bones in joints. Over time, the cartilage wears off due to aging and repeated movement. As a result, tendons and ligaments stretch, and bones rub against each other, causing pain. Collagen provides support for the growth and repair of cartilage tissue, as well as relieves joint soreness and pain. Boost collagen intake for your body, so you can sustain an active lifestyle and achieve your fitness goals.