Moisture level of the skin is closely related to hyaluronic acid, with age, the skin hyaluronic acid content decreased, so that the skin water retention function, and wrinkles. Aqueous solution of sodium hyaluronate with a strong viscoelasticity and lubricity, applied to the skin surface, can form a moisture permeable membrane, to keep the skin moist and glossy. Small molecule hyaluronic acid can penetrate into the dermis, promote blood circulation, help skin absorption of nutrients, play a role in health care beauty anti-wrinkle
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