Hyaluronic acid is the main constituent of a family of polysaccharides which are similar in terms of structure and behaviour, and contain amino sugars better known as glycosaminoglycans.
In chemical terms, it is a non-branched linear polymer consisting of a disaccharide unit formed by glucuronic acid and N-acetylglucosamine, which is repeated in the molecule numerous times, reaching molecular weights of up to several million daltons.













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