Hyaluronic Acid is a kind of anionic, nonsulfated glycosaminoglycan. It has a linear structure consisting of N-acetyl-D-glucosamine and D-glucuronic acid.
Hyaluronic Acid is widely used in various cosmetics like facial craems/lotions, milky lotions, moisturizer creams, toners, under eye cream, sunscreens, lipsticks, hair care products etc. mainly because of its excelent moisture retention property. Hyaluronic Acid can form protective film on the surface of skin, or penetrate into dermis, to retain or replenish moisture, and prevents from evaporating. It helps make skin looks younger, fresh and charming.