
Repair and prevention of skin damage. Skin burns or sunburn caused by sun exposure, such as redness, blackening and peeling, are mainly caused by ultraviolet rays in the sun. Sodium hyaluronate can promote the regeneration of injured skin by promoting the proliferation and differentiation of epidermal cells and scavenging oxygen free radicals. Prior use also has a certain preventive effect. Its action mechanism is different from that of UV absorbers commonly used in sunscreen. Therefore, HA and UV absorbers are used together in sunscreen and skin care products, which can simultaneously reduce the transmission of UV and repair the skin damage caused by a small amount of UV, playing a dual protective role. The combination of sodium hyaluronate, EGF and heparin can accelerate the regeneration of epidermal cells and make the skin tender, smooth and elastic. When the skin is slightly burned, applying aqueous cosmetics containing sodium hyaluronate on the surface can reduce pain and accelerate the healing of the injured skin.
