Hyaluronic acid is the hyaluronic acid of disaccharide unit. It is composed of d-glucuronic acid and n-acetylglucosamine, also known as the uronic acid. Its basic structure is a large polysaccharide composed of two disaccharide units d-glucuronic acid and n-acetylglucosamine.Unlike other mucopolysaccharides.
It doesn't contain sulfur.Its hyaluronic molecules can carry more than 500 times the water, is now recognized as the best moisturizing ingredients, widely used in care products and cosmetics.