moisturize the skin
By BIOHUAER | 11 October 2019 | 0 Comments

How to effectively moisturize the skin

The water content of the skin is mainly determined by three factors: 1. The amount of water that the drinking water reaches the skin; 2. The water retention capacity of the epidermis; 3. The amount of water lost due to evaporation of the skin surface. To keep the skin moist and full, it is necessary to start from these three aspects to do a good job of moisturizing the skin.
 
Drinking water normally
He has repeatedly said that the majority of the moisture in the skin is absorbed by the various systems of the human body, transported to the dermis layer, penetrated through the layers, and finally reaches the stratum corneum of the epidermis. If the amount of water is not enough every day, the water obtained by the skin will naturally be insufficient, the source of the water is broken, and how expensive and effective skin care products are used will not help. To replenish water, start at the source.
Therefore, the first step in skin moisturizing is to drink water normally. Moisture intake is not just about drinking water, but also the intake of water from diets and drinks. There are many standards for drinking water every day. I understand that each body is different. The demand for water is different. I can't understand it mechanically. I must finish the standard drinking water in the book. Comfort is the standard. If you don't like to drink water, you can make tea or drink juice, which can achieve the effect of hydrating.
 
Strengthen the skin's ability to retain water
Why are you hydrating every day, the skin is still dry, peeling? In the detailed analysis, the moisture in the epidermis is mainly stored in the epidermal cells and between the interstitial bilayer lipids. The water in the cells is mainly adsorbed by the natural moisturizing factor (NMF) to prevent the evaporation of water. The water between the interstitial cells is surrounded by two layers of lipids. The liposome is a hydrophobic component that prevents moisture from evaporating and external moisture from entering the body, achieving a moisturizing effect. Therefore, to strengthen the skin's ability to retain water, mainly from two aspects: 1, supplement natural moisturizing factors; 2, repair damaged intercellular lipids
● Supplement natural moisturizing factor
The natural moisturizing factor (NMF) in keratinocytes is insufficient in water-blocking ability, and the skin moisture loss is accelerated, resulting in a lack of water in the skin. If the natural moisturizing factor (NMF) is added in time, the cell's water-locking ability can be enhanced and the skin can be relieved. The main components that can penetrate the cell and exert water-locking ability are glycerin, urea, PCA sodium, lactic acid, various amino acids, carbohydrate isomers, panthenol, oligopeptide hyaluronic acid, and sodium, potassium, Mineral ions such as calcium and magnesium.
These ingredients are excellent moisturizers that penetrate the interior of the cell, strengthen the water retention capacity of the keratinocytes, and achieve deep moisturizing effects. These ingredients are often seen in some excellent moisturizing essences, lotions, and creams. Some products will be added in substance, and some will be added in a small amount. In the actual operation, we will analyze these products in detail.
 
● Repair damaged intercellular lipids
Do you still remember the "brick wall" structure of epidermal cells? Keratinocytes are equivalent to a block of bricks, and the cells are filled with interstitial cells, which is equivalent to the cement used for wall building. Due to improper skin care, such as excessive cleaning, or other reasons, the lipid contained in the intercellular substance is reduced, the skin barrier ability is reduced, the water-interlocking ability of the intercellular substance is lowered, and the water evaporates, resulting in dry skin, water shortage, and roughness. The barrier capacity is reduced. Therefore, proper supplementation of intercellular lipids can repair damaged skin and improve the skin's moisturizing ability.
The main components of intercellular lipids are cholesterol (25%), ceramide (50%), and free fatty acids (15%). These three components are often found in many repair products, especially various ceramides. It is a key component of business hype. The principle is to supplement the components of intercellular lipids, repair damaged skin and strengthen moisturizing ability. However, it is important to note here that some products add ceramide alone. This is not the case. Ceramide alone can signal apoptosis and accelerate keratinocyte shedding. Therefore, in products containing ceramide, it is necessary to use the above three components in combination to be able to repair.
Regarding the repair of damaged skin, detailed analysis will not be carried out here. In the future, when writing sensitive and red blood skin repair articles, explain in detail.
 
Prevent water evaporation
In a particularly dry and cold environment, relying on the skin's moisturizing ability, it has been unable to withstand the invasion of the external environment. At this time, a moisturizing film should be established on the surface of the skin to achieve the purpose of moisturizing and water-locking. This protective film prevents the evaporation of skin moisture. It mainly consists of two parts: 1. Moisturizer; 2. Grease
● Humectant
The humectant can be adsorbed on the surface of the skin to maintain the moist surface of the skin by grasping the water molecules to achieve the purpose of moisturizing. Commonly used humectants are glycerin, propylene glycol, butanediol, urea, sodium PCA, lactic acid, various amino acids, saccharide isomers, panthenol, sodium hyaluronate, trehalose, tremella extract and the like.
These moisturizing ingredients, some of which have a relatively large molecular weight, such as hyaluronic acid, do not enter the skin, forming a gas-permeable membrane on the surface of the skin, absorbing water molecules and preventing evaporation of water.
These moisturizers are a must-have ingredient in almost all skin care products. The type of moisturizer used is different depending on the target customer's price and price. The main difference between a good moisturizing essence and an ordinary moisturizing essence is the choice of moisturizer.
 
● Grease
Only relying on the skin's water-holding capacity and the water-blocking ability of the moisturizer in cosmetics can not cope with the dry and cold environment, and can not achieve the purpose of preventing water evaporation. At this time, it is necessary to use oil and fat to rebuild a layer of oil film on the surface of the skin to achieve the purpose of moisturizing.
Oil and fat components are mainly divided into two categories: 1, blocking agents; 2, emollients. The sealant forms a sealed oil film on the surface of the skin to prevent the evaporation of water. It is generally used in some products with strong moisturizing ability. Common blocking agents are mineral oil, petrolatum, and wax. How to contain these ingredients in the ingredients, and the top position, usually high moisture, strong moisturizing ability, suitable for dry skin and dry and cold seasons and regions.
Commonly used emollient ingredients are: vegetable oil, synthetic fat, etc., a wide variety of these emollient ingredients can penetrate the skin to play a role, most of them, like the sealant, stay on the surface of the skin, constitute the protective film of the skin, play Lock water, moisturizing effect. These emollients are spreadable and can penetrate deep into the gully on the surface of the stratum corneum to fill the cuticle and lubricate the skin.
A product that chooses which fat component determines the moisturization of the product, what type of skin is suitable for, and what climatic conditions and regions are suitable for use. Some small partners always feel that the skin is dry, a large part of it is because the lotion or cream used is too refreshing, the oil content is low, or the oil used is too refreshing. If you choose a suitable cream or lotion based on the nature of the skin and the climatic conditions, please refer to the actual operation.
In summary, to moisturize the skin, it is necessary to ensure that a sufficient amount of water is consumed, the skin's ability to retain water is normal, and products suitable for skin properties are selected to prevent evaporation and loss of water, to achieve the purpose of moisturizing.
 
 

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