Sodium hyaluronate, also known as sodium hyaluronate, is a physiologically active substance widely present in the human body. It is a high molecular weight linear mucopolysaccharide formed by polymerization of disaccharide units composed of glucuronic acid and acetyl hexose. , Its molecular weight is 1 million. It forms a thick viscoelastic solution in water with physiological pH and ionic strength. Its molecular morphology is variable, so it can be passed through with a thinner needle. The substance that does not produce inflammation in sodium hyaluronate is extracted and called Healon. 10mg of this product is dissolved in 1ml of normal saline, and its viscosity can be 200,000 times higher than aqueous humor or normal saline. Healon's protein content is less than 0.5% and is a sterile high-purity solution.
Moisturizing effect is the most important role of sodium hyaluronate in cosmetics. Compared with other moisturizers, the relative humidity of the surrounding environment has less influence on its moisturizing properties. Commonly used humectants in cosmetics include glycerin, propylene glycol, sorbitol, polyethylene glycol, sodium lactate, sodium pyrrolidone carboxylate and so on.
Sodium hyaluronate has a very high viscosity in an aqueous solution, and its 1% aqueous solution is gel-like, and it can be added to cosmetics for thickening and stabilization.
The combination of sodium hyaluronate, egf and heparin can accelerate the regeneration of epidermal cells, making the skin tender, smooth and elastic. When the skin suffers from mild burns and scalds, applying sodium hyaluronate-containing aqueous cosmetics on the surface can relieve pain and accelerate the healing of the injured area.
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