Soap will wash off the oil on the skin surface and make the skin dry, so it is not suitable for sensitive skin or dry skin.
The surfactant in facial cleanser has five functions of wetting, dispersing, foaming, decontamination and emulsification, and is the main active substance of facial cleanser. There are many kinds, and different skin types also correspond to different facial cleansers.
As the most widely used product for body cleaning, soap is mainly composed of sodium fatty acid, which is relatively alkaline. If used for cleansing, it may cause some harm to the skin. Facial cleanser, as a product specially used for cleaning face, is composed of oil phase, water phase, surfactant, humectant and other components in liquid form. After fully wetting and foaming with water, it has good decontamination and emulsification effects on dirt on skin surface. If you are used to washing your face with soap, you may wish to choose handmade soap containing natural glycerin, which is better for your skin.
Extended data:
Soap is an indispensable daily washing product, and the history of people using soap can be traced back to Italy before BC. Soap has been widely used in China since 1980s.
The function of vegetable soap is cleaning and washing. Used on the skin, of course, is to remove dirt, skin secretions, excreta, chemicals or bacteria. With the emphasis on beauty today, removing cosmetics, skin care products or drugs from the skin surface is also one of its main uses.
Matters needing attention
1. After using plant alkali soap, the skin feels neither dry nor tight, and produces delicate, firm and stable foam.
2, the fragrance is rich, which makes people feel very refreshing after use.
3, the appearance is well-defined, the surface is full and round, and it does not shrink or crack after storage.
4, moderate hardness, not easy to dissolve and disintegrate in warm water.
5. The labels on the product packaging are complete, indicating the product implementation standards and functions, and selecting the appropriate products according to the needs.
6. Choose brand-name products of well-known enterprises.
7. Choosing imported brand soaps depends on whether there is a Chinese label to prevent unknown origin.
Facial cleanser is a high-grade facial cleanser. It can clean facial dirt and remove makeup. Good quality facial cleanser should have the effects of cleaning, nutrition and skin care. Generally speaking, ordinary facial cleanser has no whitening effect. If a proper amount of skin whitening agent (such as arbutin, V derivative, placenta extract, scopolamine, kojic acid and its derivatives) is added to high-quality facial cleanser, it will have whitening effect after long-term use.
References:
Baidu encyclopedia-soap
References:
Baidu encyclopedia-facial cleanser