Chondroitin sulfate sodium (CS) is a kind of glycosaminoglycan which is covalently linked to protein to form proteoglycan. Chondroitin sulfate sodium is widely distributed in extracellular matrix and cell surface of animal tissues. The sugar chain is composed of alternating glucuronic acid and N-acetylgalactosamine (N-acetylgalactosamine) disaccharide units, which are connected to serine residues of core protein through a sugar like linkage region. +View details

A compound in which a hydroxyl group of glucose is replaced by an amino group. Molecular formula C6H13O5N, commonly known as amino sugar, referred to as ammonia sugar. Glucosamine, also known as glucosamine, widely exists in nature. 2-amino-2-deoxy-d-glucose usually exists in the form of N-acetyl derivatives (such as chitin) or in the form of n-sulfuric acid ester and n-acetyl-3-o-lactate ether (cell wall acid) in microorganisms, animal derived polysaccharides and binding polysaccharides.
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Collagen is a natural protein of the body. It has a greater affinity for protein molecules on the skin surface, weaker antigenicity, good biocompatibility and biodegradation safety. It can be degraded and absorbed, and has good adhesion. Surgical suture made of collagen has the same high strength as natural silk and absorbability. When used, it has excellent platelet aggregation performance, good hemostatic effect, and good smoothness and elasticity. The knot is not easy to loosen, it is not easy to damage the body tissue during the operation, and it has good adhesion to the wound surface. In general, only a short time of compression can achieve a satisfactory hemostatic effect. So collagen can be made into powder, flat and sponge hemostatic agent. At the same time, synthetic materials or collagen are widely used in the research and application of plasma substitutes, artificial skin, artificial blood vessels, bone repair and artificial bone and immobilized enzyme carriers. +View details

Shark cartilage powder is a complex of chondroitin sulfate and protein made from shark cartilage, with a relative molecular weight of 20000-40000. An acidic mucopolysaccharide, composed of chondroitin sulfate, glucuronic acid, galactose, xylose and serine, combines with protein. As a commodity, dextrin is often added to make powder. There are also a, B, C, D, e, F and other kinds of chondroitin sulfate in the main framework, among which a, B, C are the main three kinds, and chondroitin sulfate B is also known as dermatan sulfate. Type D is the main type of shark cartilage. +View details

Hyaluronan, a disaccharide unit composed of D-glucuronic acid and N-acetylglucosamine, is also called glucuronic acid and hyaluronic acid. Its basic structure is a large polysaccharide composed of two disaccharide units, D-glucuronic acid and N-acetylglucosamine. Unlike other mucopolysaccharides, it contains no sulfur. Its hyaluronic molecule can carry more than 500 times of water, which is the best moisturizing component recognized today, and widely used in maintenance products and cosmetics.+View details