Polyquaterniums

In the cosmetics industry it is applied as a hair conditioner made up of a quaternary ammonium and an acrylamide. Applications in conditioners, shampoo, hair mousse, hair spray, hair dye, personal lubricant, and contact lens solutions. Because they are positively charged, they neutralize the negative charges of most shampoos and hair proteins and help hair stay flat. Their positive charges also ionically bind them to hair and skin.