Polyquaternium-7, cationic quaternary ammonium synergistic polymer surfactant, appearance is colorless to pale yellow viscous liquid. Easily soluble in water, safe, good hydrolytic stability, and strong adaptability to pH changes. It has excellent wettability, softness, and film-forming properties, and has obvious effects on hair conditioning, moisturizing, gloss, softness, and smoothness. It has good compatibility with water and anionic and non-ionic surfactants and can be used in detergents to form multi-salt complexes, which can increase viscosity. 1.Polyquaternium-7, used in hair conditioners, can greatly improve the modifiable and conditioning of hair. After shampooing, it can make the hair shiny, soft and easy to comb, so that the hair has good wet and dry combing. And anti-tangling. 2.Polyquaternium-7, used in skin care products, is a very effective smoothing and lubricating agent, used in hydroalcoholic tanning detergents, can produce a non-sticky, non-greasy smooth residual film on the skin. 3.Polyquaternium-7, used in soap and other industries, can reduce the swelling of soap substances in water, improve crack resistance and foaming properties, thereby significantly improving product quality. 4.Polyquaternium-7, used in shaving cream, can produce rich, creamy, long-lasting foam, reduce shaving and make the skin soft and smooth