A good cleansing product needs to have these characteristics: moderate cleaning power, fast foaming, rich and stable foam, easy to rinse off, good skin-friendly, non-irritating, and the skin is dry and not tight after washing.
There are so many facial cleansers on the market, how do we choose? The more common facial cleansers on the market are soap-based facial cleanser and amino acid facial cleanser.
Soap base type: Soap base is formed by neutralizing and saponifying fatty acids such as lauric acid, palmitic acid, stearic acid, and myristic acid through alkali (sodium hydroxide, potassium hydroxide, etc.). Soap-based facial cleanser is alkaline. Although it can metabolize surface dirt such as skin oils and blackheads, it will also destroy the sebum film of the skin and take away the natural moisturizing factors of the surface skin, making the skin dry and dry. Tightness can severely cause dryness, oiliness, and sensitivity to the skin.
Amino acid type: The surfactant is mainly composed of amino acid surfactant. Amino acid surfactants are a kind of mild, biodegradable anionic surfactants. The weakly acidic amino acid surfactants have a PH value close to that of human skin. In addition, amino acids are the basic substances that constitute proteins, so they are mild and skin-friendly, and their products can also be used for sensitive skin.