Science-y Hair Blog: Polyquat or Not?
Guar Hydroxypropyltrimonium Chloride - A cationic conditioner often used in conditioning or mild shampoos. High potential for build-up, but is also very good for detangling, especially detangling wet hair which is why it is used in shampoos. ©Science-y Hair Blog 2013 Polyquaternium-4 - Cationic conditioner that has film-forming properties.