Chondroitin Sulfate is found naturally in the body, but injuries or aging may make it hard to produce. It is absolutely needed to strengthen and add flexibility to the protein filaments that make up your cartilage, tendons, and ligaments. Chondroitin Sulfate works by binding water in connective tissue, giving it its elasticity and cushioning effect. It helps cement cells together and lubricates joints and bursa, the small cushions between tendons and bones. It also promotes enhanced joint function, elasticity and cushioning required to withstand stress and protects and stabilizes collagen as well as supplying material for the production of new cartilage.