Hyaluronic acid, also known as sodium hyaluronate, is a polymer of disaccharides, which are composed of D-glucuronic acid and N-acetyl D-glucosamine. It is widely distributed in various parts of the body and in the skin, as it's the main component of connective tissue such as the extracellular matrix, the vitreous of the eye and the synovial fluid of the points. It plays a vital role in various physiological functions such as water retention, maintenace of extracellular space, regulation of osmatic pressure, lubrication and the promotion of cell repair in the body.
Hyaluronic acid, or Hyaluron, is present in human body in connective, epithelial, and neutral tissues.
Hyaluronic acid is a natural compound and has become a leading product within the field of cosmetology and aesthetic medicine due to its unique ability to retain large amount of water.