Polyquaternium-7 (Polyquat 7) is an organic compound in the polyquaternium class of chemicals and used in the personal care industry. It is the copolymer of acrylamide and the quaternary ammonium salt diallyldimethylammonium chloride
Polyquaternium 7 is the designation established with the original association, Cosmetics, Toiletires, and Fragance Association (CTFA), now known as the Personal Care Products Council. There are an abundance of product names containing the same or a similar active ingredient for applications outside the Cosmetics and Personal Care industry.
Polyquaternium-7 is applied in waste treatment for laundry, emulsion breaking, sludge dewatering and drainage and retention aid. It is a cationic polyelectrolyte.
Polyquaternium-7 is used as modifier, for example in shampoo, hair conditioner, hair spray, mousse, soap, gel, styling agent, shaving product, deodorant agent, antiperspirant. The DADMAC monomer is highly hydrophilic. Absorption of moisture from the air lends “conditioning” properties to the products that contain the copolymer such as shampoos, hair and skin conditioners and other PC products including some bar soaps.