What is hyaluronic acid? What is sodium hyaluronate?

Hyaluronic acid is an acid, sodium hyaluronate is a sodium salt, sodium hyaluronate is actually a sodium salt form of hyaluronic acid, strictly speaking, hyaluronic acid is actually an acid, and sodium hyaluronate is a sodium salt, the two are different substances. From the point of view of molecular structure, the two have the same main structure, the difference is that when the carboxyl R site is connected to hydrogen ions, it is hyaluronic acid, and when it is connected to sodium ions, it is sodium hyaluronate. From the surface, the pH of hyaluronic acid is low, 3-5, and the pH of sodium hyaluronate is close to neutral, and the pH is generally 5.0-8.5.

Application of hyaluronic acid and sodium hyaluronate.

In fact, both hyaluronic acid and sodium hyaluronate are macromolecular polysaccharides with very strong moisturizing properties. The difference is that the two have large differences in product properties due to structural differences. The pH of hyaluronic acid is 3-5, and the low pH of hyaluronic acid leads to poor product stability. The production process is also more complex than sodium hyaluronate, and the low pH is acidic resulting in a certain irritation, limiting the application of the product, so it is not common in the market!

The sodium hyaluronate product is stable, the production process is mature, the pH is nearly neutral and basically non-irritating, the molecular weight range is wide, 10-2.3 million can be produced to meet the different needs of the market, so it has been widely used in the market, in our common cosmetics and food publicity hyaluronic acid, hyaluronic acid and so on actually refers to sodium hyaluronate! As can be seen from the above, hyaluronic acid and sodium hyaluronate are not essentially the same product. But everyone habitually calls sodium hyaluronate hyaluronic acid, or hyaluronic acid, resulting in many misunderstandings.

How to distinguish between hyaluronic acid and sodium hyaluronate.

According to the relevant laws and regulations of cosmetics, various specific ingredients of cosmetics can be distinguished by the ingredient list on the back of cosmetics.

At present, only sodium hyaluronate is approved for use in China’s new resource food, and both hyaluronic acid and sodium hyaluronate in pet food can be used as feed additives.

Efficacy of sodium hyaluronate.

With its unique molecular structure and physical and chemical properties, sodium hyaluronate has shown a variety of important physiological functions in the body, such as lubricating joints, regulating the permeability of blood vessel walls, regulating protein, water, and electrolyte diffusion and operation, and promoting wound healing. At the same time, it is an important basic material for skin tenderness, itself is also a component of the human body, it has a special water retention effect, and is currently found in nature as one of the best moisturizing substances. It can improve the skin’s nutrition metabolism, make the skin tender, smooth, and wrinkle, increase elasticity, prevent aging, and moisturize at the same time can assist other ingredients through the skin absorption of the accelerator.