Merquat™ PLUS 3331 polymer is an ampholytic terpolymer that is compatible with anionic and amphoteric surfactants. It has a slightly higher molecular weight than Merquat™ PLUS 3330 polymer. Merquat PLUS 3331 polymer is ideally suited for liquid cleansing products. In skin care, bath and shower formulations, it provides silky skin feel and moisturization. In hair care formulations, it provides excellent wet and dry combing properties.