Cocamidopropyl betaine(trade name: CAB) is a colorless or light yellow transparent viscous liquid. As a zwitterionic surfactant, it is used in acid and alkali. It has excellent stability under natural conditions, showing cationic and anionic properties, respectively. It has good compatibility, low irritation, easily soluble in water, stable to acid and alkali, more foam, strong detergency, and excellent thickening. Cocamidopropyl betaine can significantly improve the softness, conditioning and low temperature stability of washing products, and has no irritation or allergic reaction to skin and eye mucous membranes. It can interact with yin, yang, Compatible with non-ionic surfactants to obtain transparent liquid or colloid.