
Chondroitin sulfate (CS) is a class of glycosaminoglycans that are covalently attached to proteins to form proteoglycans. Chondroitin sulfate is widely distributed in the extracellular matrix and cell surface of animal tissues, and the sugar chain is formed by the polymerization of alternating glucuronic acid and N-acetylgalactosamine, which is attached to the serine residue of the core protein by a sugar-like link-linked region.
Chondroitin sulfate can reduce pain in patients with osteoarthritis, improve joint function, reduce joint swelling and fluid accumulation, and prevent narrowing of the gap in the knee and hand joints. It provides a cushioning effect that soothes impact and friction during movement, draws water into the proteoglycan molecules, thickens the cartilage, and increases the amount of synovial fluid in the joints.









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