Standard name : Hyaluronic acid
CAS no : 9004-61-9
"It is one of the complex polysaccharides composed of amino acids and uronic acids. It is a high molecular compound composed of N-acetylglucosamine and glucuronic acid. It exists in the vitreous body of the eye or the umbilical cord, and plays a role in preventing the penetration of bacteria or poisons."
It forms a moisturizing barrier that retains moisture and maintains a sense of moisture. It is also effective for wrinkle improvement by helping with antibacterial action and collagen synthesis and maintenance.