Moisturizing is the basic function of skin care products. When you take out the skin care products you are using, you will find that almost every product claims to have a certain moisturizing effect. There are also products specially used for moisturizing and moisturizing on the market, with rich types and large market demand. So, do you know what are the common moisturizing ingredients?
Common moisturizing ingredient 1: Hyaluronic acid
Hyaluronic acid is hyaluronic acid, is a non-protein polysaccharide body, is also an important mucous substance in the human dermis, known as the best moisturizer. It has a very strong water absorption capacity, can absorb water equivalent to its own weight hundreds of times like a strong sponge, in a short time to let the skin moisture filled.
Hyaluronic acid can be divided into the following three types according to its molecular weight:
1. Large molecules of hyaluronic acid can form a barrier on the surface of the skin to prevent water loss, but it is sticky to the touch.
2. Medium molecule hyaluronic acid can moisturize the stratum corneum and provide long-term moisture.
3. Small molecules of hyaluronic acid can really penetrate into the dermis and improve dry aging from the muscle base.
Common moisturizing ingredient 2: glycerin
Glycerin is the most cost-effective well-known moisturizing ingredient, which has very good hygroscopicity. It draws moisture from the air and leaves a protective film on the surface of the skin. Of course, the concentration of too much glycerin will be irritating, and because the absorption effect is too good, directly used on the skin, but may directly absorb the water in our skin, so we can only use diluted glycerin, glycerin alone can not achieve a very good moisturizing effect.
Glycerin is suitable for all types of skin, good safety, will not cause sensitivity discomfort. It's more like a versatile moisturizer that can be combined with other ingredients for better moisturizing effect.
Common moisturizing ingredient 3: Ceramide
Ceramides are already present in human skin. It is the main component of the intercellular lipoid body of the outermost stratum corneum of human skin (>50%), which plays an important role in preventing water dispersion and protecting against external stimuli, and assumes the function of protecting the skin and moisturizing and moisturizing. Ceramide is added to skin care products to repair the skin barrier through external use. Ceramides exist in the natural structure of the skin, so they are not prone to sensitivity problems, and are ideal skin care ingredients for sensitive dry aging skin.
Common moisturizing ingredient 4: Squalene
Squalene was originally extracted from shark liver. Squalene can provide oxygen and nutrients to cells, promote cell metabolism, and form a sebum membrane outside the skin to prevent water loss. Virtually all animals and plants produce squalene, including humans. However, the molecular structure of squalene is unstable and easy to oxidized, so as an external skin care product, squalane came into being. Squalane has almost the same effect as squalene in skin care, and is a hydrogenated saturated compound of squalene, which is stable and not easy to be oxidized.
Common moisturizing ingredient 5: Betaine
The chemical name of betaine is trimethylglycine, which is an alkaloid, its hygroscopic effect is excellent, mild and skin-friendly. Unlike glycerol, which immobilizes water molecules, it allows them to be fully absorbed and used by living cells. Even at low concentrations, it can still achieve a long-lasting moisturizing effect, known as "tap water" moisturizing (it can absorb the deep moisture of the skin to the surface of the water shortage, so that the skin surface also contains sufficient moisture). Betaine is found naturally in many plants, such as beets, spinach, malt, mushrooms and fruits.
These moisturizing ingredients above, you can more or less find in the list of skin care ingredients. During the transition period of spring and summer, be sure to pay attention to the moisturization of the skin, you do not want to take off the mask days in the future, to see a dry, wrinkled face.
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