The role of betaine in cosmetics

Betaine is a quaternary ammonium compound, betaine in skin care products mainly refers to the glycine betaine, the scientific name is trimethylglycine. It is a naturally occurring and edible amino acid. The main role of betaine in cosmetics is moisturizing, antistatic, viscosity control and surfactant, betaine has a unique moisturizing and protective cell membrane properties, but also has the effect of improving the skin and hair moisture retention ability, while increasing the solubility of active ingredients in water, reduce the irritability of surfactants on the skin, Give skin and hair moisturizing, smooth feeling, often used in washing products, the amount is generally 0.5% to 5%.