Chondroitin sulfate is a mucosaccharide substance extracted from the cartilage of animals, mainly from the cartilage ofchicken, bovine, porcine, fish, and shark. Chondroitin sulfate helps to enhance the ability of synovium to produce hyaluronic acid, which can promote the secretion of synovial fluid so that ioints can move more flexibly. Combined withglucosamine, it can reduce pain and promote cartilage regeneration. it is widely used in joint healthcare products.