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Tip: Can a mask moisturize?

Wash the mask within a short time after use. Most masks use very little oil and have a good immediate moisturizing effect, but the moisturizing ability is weak, so you should not rely on masks to moisturize, but use creams and milk moisturizing products.

Tip: What is the difference between large molecule and small molecule moisturizers?

Large molecule and small molecule levels are not conceptualized as a strict corporate standard. xove 白松露Large molecule is a question that usually refers to substances with a molecular weight of 5,000 or 10,000 or more.

Commonly used high molecular moisturizing ingredients include.

High molecular weight sodium hyaluronate, collagen, silver fungus polysaccharide or other mucopolysaccharides, polyglutamic acid, chondroitin sulfate, some cellulose, and natural colloids. Sodium hyaluronate is the most commonly used.

Because these substances contain more hydrophilic groups, they can bind with a large amount of water and play the role of moisture absorption and moisturization. Due to the effect of molecular weight,xove 白松露 it will be more viscous, film-forming, and less permeable. Due to the nature of film formation, other substances are distributed in such a way that they do not penetrate easily when forming a barrier. In this regard, it prevents other nutrients from being absorbed into the skin.

The analysis of viscous macromolecular ingredients is more suitable for making cream-based products on their own, and these corporate products are also more suitable for moisturizing and slow-release effects that can be applied after the serum.

Small molecule moisturizers include various polyols xove white truffle(glycerin, propylene glycol, butylene glycol, etc.), sodium pyrrolidone carboxylate (PCA-Na, vitamin B5 (panthenol)), water-soluble ceramides, sodium lactate, etc.

Low molecular weight moisturizers tend to be less viscous and less permeable. Vitamin b5 and ceramides are very important for their physiological activity so that they can easily penetrate between cells to retain moisture. pca-na, sodium lactate, etc. are components of the body's natural moisturizing factor (nmf).

Hyaluronic acid with a molecular weight of less than 500,000 is also considered as low molecular weight hyaluronic acid. The small molecule structure can be added to moisturizing water and serum to provide a more refreshing skin feel.

In practice, large and small molecule moisturizers are used together to achieve better moisturizing effect. For example, the combination of sodium hyaluronate Na-HA and glycerin has a better moisturizing effect than Na-HA alone. Brands are unlikely to use a single large or small molecule moisturizer. Of course, marketing can be focused on one category or component.

Tip: Are direct dermal hydration claims credible?

Dermis has > 70% water content and is a large source of drinking water. Applying 1.4 ml of moisturizer to the face daily does not satisfy the appetite of the dermis.

Since the epidermal basement membrane blocks cultures with molecular weight > 40,000 from entering the Chinese dermis, large molecules such as hyaluronic acid are not well understood to penetrate the epidermis into the dermis, and other small molecule moisturizers have limited research significance even if they do penetrate. If a company penetrates quickly to the point of "direct access", it will definitely develop an impact that will raise the stimulus significantly, which I believe you cannot understand accept yourself. Therefore, we do not see the need for moisturizers to enter the dermis through various skin absorption societies.

It is the epidermis that is really dehydrated, so the focus of moisturizing should also be on the epidermis: adequate epidermal cell interstitium, moderate water content in the stratum corneum, maintaining the integrity and health of the epidermis, preventing cracking, and preventing excessive water loss from the dermis to achieve the ideal moisturizing purpose.

Usually a moisturizing product consists of a moisturizing water, a moisturizing serum, a moisturizing cream or a moisturizing lotion. If you don't know how to read the ingredients list, in order to know how well each cultural product works, you can apply only this product after washing your face and feel how long the student can make the skin feel less tense, the longer the better.

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