Polyquaternium-55 is a hair fixative. It basically means that it imparts holding or style-retention properties to hair. Film Formers, such as polymers and their derivatives, are typical ingredients for this application. Moreover, this polymer promotes and stabilizes foam through its ability to reduce surface tension, has excellent adhesion to high energy substrates and forms flexible, elastic, low-tack and heat-resistant films. Polyquaternium-55 is mainly used in our hair styling paste products.