Polyquaternium-10 is a kind of cationic hydroxyethyl cellulose. This polymer has excellent solubility, conditioning ability, adsorption and repairing ability to hair and skin. With its linear polymer structure with positive charges along the backbone, Polyquaternium-10 is a mild conditioner that is compatible with different kinds of surfactants. The unique ability to repair damaged protein substrates make Polyquaternium-10 can be widely used in hair care,hair styling, facial cleanser, body wash and skin care fields. Nowadays, Polyquaternium-10 is still treated as most popular cationic conditioner polymer among all polyquaternium family.