Can’t use soap base? Amino acids? How to choose cleansing products?

&Besides putting on makeup, the most important thing for women should be skin cleansing. As the name suggests, the function of cleansing is to remove excess oil, dirt, exfoliated cutin, bacteria, etc. from the skin surface to ensure that skin pores are unobstructed and to increase the absorption speed of skin care products. Cleansing is also one of the basic requirements for skin care. Because the sebaceous glands on the face are relatively developed, they usually secrete more oil than other parts. Therefore, the longer the face is exposed to the air, the dirtier the facial skin will be. Therefore, women must Pay more attention to natural cleaning. Facial cleanser is usually used to clean the face. Do you know what ingredients are in facial cleanser?
Surfactant: refers to a substance with fixed hydrophilic and lipophilic groups that significantly reduces the surface tension of the solution. It is mainly composed of organic amphiphilic molecules with hydrophilic groups and lipophilic groups. The lipophilic group is compatible with the oil secreted by the skin, and then the hydrophilic group takes away the entire surface activity. This is the core ingredient of facial cleanser. The main functions of surfactants are: wetting, solubilization, emulsification, foaming and adsorption.
Moisturizer: Basically all facial cleansers on the market will add moisturizer ingredients. It should be noted that no matter how mild the detergent is, it will damage the sebum film to varying degrees while achieving the decontamination effect, causing damage to the skin. damage.
Active additives: These additives have a short residence time and their effects are not obvious enough, such as whitening and anti-aging functions.
Preservatives: Preservatives are the main cause of skin allergies, redness and swelling. However, in order to ensure the use time of the product, preservatives are added to every facial cleanser. This is why the warm reminder on the product says : After opening the cap, please use it within the shelf life.
A truly excellent cleansing product should be a combination of multiple surfactants and contain no alcohol, fragrance, or various chemical additives. However, when buying a cleansing product, you still need to choose according to your own skin type. For example, if your face is extremely oily, amino acid facial cleansers are not suitable. Only by using soap-based cleansing products appropriately can you wash your face better. However, it should be noted that although the soap base has a strong ability to remove fat, long-term use will cause the loss of lipids in the skin, causing the stratum corneum to continuously become thinner, making the skin more and more sensitive.
Most skin types are more suitable to use weakly alkaline products, because the so-called weakly acidic environment of our skin is actually caused by skin secretions. Weakly alkaline products are naturally more suitable for cleaning acidic dirt. Because cleansing products stay on the skin for a relatively short time and are quickly washed away by water after washing. In addition, human skin itself has an automatic adjustment function, so weakly alkaline cleansing products will not affect the weakly acidic environment of the skin.
Amino acid surfactants can be made into either weakly acidic products or alkaline products, because the properties of amino acids will be different under different H conditions. For example, glycine surfactants become foam when the H value is. at its richest and most delicate. Amino acid surfactant is close to the human body's H value, so it is gentle and skin-friendly, does not irritate the eyes, and can be used even by children and sensitive skin.