Hyaluronic acid (external grade)

Hyaluronic acid (HA) is a mucopolysaccharide composed of disaccharide repeat units of N-acetylglucosamine and glucuronic acid. The main physiological functions of HA are water retention and lubrication.
Moisturizing and anti wrinkle effects: the moisture level of the skin is closely related to the HA content. With the growth of age, the HA content in the skin decreases, which weakens the water retaining function of the skin and produces wrinkles. Ha aqueous solution has strong viscoelasticity and lubricity. When applied to the skin surface, it can form a moisturizing and breathable film to keep the skin moist and bright. Small molecule HA can penetrate into the skin layer, promote blood microcirculation, facilitate the absorption of nutrients by the skin, and play a health care role of beauty and anti wrinkle.
Sunscreen effect: HA can eliminate the reactive oxygen free radicals produced by ultraviolet radiation and protect the skin from its harm.
Repair and prevention of skin injury: Ha promotes the regeneration of skin at the injured site by promoting the proliferation and differentiation of epidermal cells.
Ha is an indispensable natural moisturizing ingredient for makeup. It can be widely used in moisturizing, anti-aging, sunscreen, wound care, hair brightener, shampoo and bath liquid, etc. the addition amount is generally 0.05-0.5%.