Sodium hyaluronate, CAS 9067-32-7, white to milky white powder in appearance, also known as sodium hyaluronate, is a physiologically active substance widely existing in the human body. It is a high molecular weight linear mucopolysaccharide polymerized from a disaccharide unit composed of glucuronic acid and acetylaminohexose. It forms a thick viscoelastic solution in water with physiological pH and ionic strength.
Sodium hyaluronate is an inherent component of human body. It is a glucan uronic acid. It has no species specificity. It widely exists in placenta, amniotic fluid, lens, articular cartilage, skin dermis and other tissues; In organs, it is distributed in cytoplasm and intercellular matrix, and plays a role in lubricating and nourishing the cells contained therein and the cellular organs themselves.
In early January 2021, the National Health Commission listed sodium hyaluronate (also known as hyaluronic acid, ha) as a new food raw material for the first time. The scope of use includes milk and dairy products, beverages, alcohol, cocoa products, chocolate and chocolate products (including cocoa butter and chocolate products), candy and frozen drinks, excluding infant food. Hyaluronic acid has been recognized as a food raw material in many countries or regions.
In addition to food, sodium hyaluronate is also widely used in the field of cosmetics and has moisturizing effect. Sodium hyaluronate is an important molecule affecting skin moisture. The decrease of skin sodium hyaluronate will weaken the skin's water retention function and produce wrinkles, so we need to supplement sodium hyaluronate.
Compared with other moisturizers, the relative humidity of the surrounding environment has little effect on its moisturizing property. Sodium hyaluronate is an inherent biological substance of the skin, and exogenous sodium hyaluronate is an endogenous supplement to the skin. The smaller sodium hyaluronate can penetrate into the skin epidermis, promote the supply of skin nutrition and waste excretion, so as to prevent skin aging and play the role of beauty and beauty; Repair and prevention of skin injury. Sodium hyaluronate can promote the regeneration of skin at the injured site by promoting the proliferation and differentiation of epidermal cells and scavenging oxygen free radicals.
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