hyaluronic acid

HA is a natural biotic component, widely existing in skin and any other tissue. It has outstanding moisture keeping ability, thus called Natural Moisturing Factor (NMF) in the world. It is the best component used in cosmetics for moisture keeping in the nature. When HA applied to the skin, macromolecular HA can form an air permeable thin layer and keep the skin smooth and moist, and protect the skin from bacteria, dust, and ultraviolet ray. With low molecular HA penetrating into corium, it will slightly enlarge blood capillaries, speed circulation of blood, improve inter-mediary metabolism and nourishment absorbing ability of skin, thus eliminating wrinkles, increasing skin's elasticity and delaying its aging. HA as well can further hyperplasia of epidermis cell, clean oxygen free radical, prevent and rehabilitate breach of skin
Sodium hyaluronate, or Hyaluronic acid (HA) is one kind ofpolysaccharides composed of repeat disaccharide units of N-acetylglucosamineand glucuronic acid Commercial HA is commonly its sodium salt form. Sodiumhyaluronate is the key water maintaining substances in human skin. Bad living environment and aging can cause the decrease of HA content in skin, and as a result the water maintaining ability of the skin is weakened and the akin looks dry and rough. One of the main causes of skin senility is also the decrease of polysaccharides, such as HA. The special structure characteristic of HA makes it has high moisturizing and water content reguating function and its solutionhas high viscoelasticity and lubricity. When HA solution is applied on thesurface of skin, it can form an air permeable layer and keep the skin moist and smooth. Small molecular weight HA can penetrate into dermis layer, fullycombine with water, promote skin blood microcirculation and nutrient absorptionand maintain normal metabolism, and as a result it plays a role of wrinkleremoving, look improving and health protecting.