Recently, the moisturizing ingredients in the beauty industry are â€œhyaluronic acidâ€, and the beauty of the big king S and blue heart are all highly recommended. It is an important basic substance for the skin to be tender and it is also a component of the human body.
Hyaluronic acid (HA) is a multifunctional substrate that is widely distributed in various parts of the body. The skin also contains a large amount of hyaluronic acid. When the hyaluronic acid content in the skin is lower than a certain level, the water content of the surface layer of the skin will gradually decrease, causing the horny layer to age, the skin appears rough, wrinkles, loss of elasticity, and aging, which generally occurs in 25 After the age. This is also one of the main reasons for the skin gap between middle-aged and young children.
Hyaluronic acid is a transparent gel that instantly moisturizes and increases skin elasticity and tension. It helps restore normal oil and water balance and improves dryness and sagging skin. Hyaluronic acid is also an important component in the skin and has the function of repairing the epidermal tissue. When the skin tissue is exposed to UVB rays, the skin will be sunburned and inflamed, and the dermal tissue will stop producing hyaluronic acid and accelerate the decline of hyaluronic acid. Hyaluronic acid is abundant in the connective tissue and dermis of the human body. It has strong water absorption capacity and moisturizing function. It also enhances the long-term water retention capacity of the skin, and helps the elastic fiber and collagen in a water-filled environment. The skin is more elastic.
The ability of different molecular weight hyaluronic acid to penetrate into the skin is different, and the efficacy is also different. The following table shows the different effects of different hyaluronic acid molecular weights (large molecular weight, medium molecular weight, small molecular weight).
Sodium hyaluronate molecular weight range efficacy
Large molecular weight 1 800 000ï½ž2 200 000 Prevents dehydration, tissue cell regeneration, firming skin
Medium molecular weight 1 000 000 ~ 1 800 000 Firming skin, long-lasting moisturizing
Small molecular weight 400 000 ~ 1 000 000 Rapid cell hydration, keeping cells
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