What is hyaluronic acid?
Hyaluronic acid is also called hyaluronic acid, HA (hyaluronic acid) for short. At present, sodium hyaluronate is widely used in cosmetics, which is the sodium salt form of hyaluronic acid and has the same effect as hyaluronic acid. Because of its better usability and operability, it is widely used .
Hyaluronic acid is an acidic mucopolysaccharide macromolecular substance widely present in connective tissues of humans and animals. It has important functions in the body such as water retention, osmotic pressure adjustment, tissue shape maintenance, lubrication, diffusion barrier, and stress buffering. From the age of 25, the hyaluronic acid in the human body will gradually lose. At the age of 30, only 65% of young skin remains, and at the age of 50, only 25% of young skin remains. Hyaluronic acid will be lost with age, and it will last for a long time , the skin will gradually lose its elasticity and luster, and aging, wrinkles and sagging will also occur.
Whether in low humidity or high humidity conditions, sodium hyaluronate has the same high hygroscopicity, automatically adjusts and maintains skin moisture at 25-30%, known as "Key to the fountain of youth" (leading to youth) fountain of youth). Therefore, it is widely used as an ideal natural moisturizing factor. The macromolecular sodium hyaluronate can form a breathable film on the surface of the skin, help the skin lock in moisture, and block the invasion of foreign bacteria, dust, and ultraviolet rays to protect skin. The skin is protected from damage. Small molecule sodium hyaluronate can quickly penetrate into the dermis, slightly expand capillaries, promote blood circulation, improve metabolism, and promote skin cell nutrient absorption. It has the functions of eliminating wrinkles, enhancing skin elasticity, and delaying skin aging.
Sodium hyaluronate has been widely used in many fields such as medicine, cosmetics, food and textiles. Studies have proved that sodium hyaluronate has the functions of moisturizing, lubricating, anti-oxidation, anti-apoptosis, anti-aging, promoting penetration, anti-inflammation, barrier repair, etc. It is used in cosmetics and can play a unique role in protecting the skin , can keep the skin moisturized, smooth, delicate, soft and elastic, and has the functions of anti-wrinkle, anti-aging, beauty care and restoration of skin physiological functions.
Sodium hyaluronate has a very strong water absorption capacity, and the affinity for absorbing water is about 500-1000 times its own mass, so it is recognized as a natural moisturizing factor.
The role of sodium hyaluronate
In fact, the difference between hyaluronic acid and sodium hyaluronate in cosmetics is very small, because sodium hyaluronate is easily hydrolyzed into hyaluronic acid, so many skin care products use sodium hyaluronate instead of hyaluronic acid. Also acts as a moisturizer.
The moisturizing property of sodium hyaluronate is related to its quality, the higher the quality, the better the moisturizing performance. As a humectant, sodium hyaluronate is rarely used alone, and is often used in combination with other moisturizers.
Sodium hyaluronate can promote the regeneration of injured skin by promoting the proliferation and differentiation of epidermal cells and scavenging oxygen free radicals. It also has a certain preventive effect when used in advance.
Small molecule hyaluronic acid can penetrate into the dermis, promote blood microcirculation, help the skin absorb nutrients, and play a role in beauty and anti-wrinkle.
As a functional cosmetic raw material, hyaluronic acid has been widely used in facial masks, toners, creams, lotions, essence products and hair care products.
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