Polyquaternium-33

Polyquaternium-33 (CAS 69418-26-4) is a cationic copolymer of acrylamide and quaternary ammonium acrylate used in personal care formulations.

Where is Polyquaternium-33 used?

• Hair care: conditioning and film-forming agent
• Hair care: substantive charge on hair and skin surfaces to improve texture and manageability
• Rinse-off shampoos and conditioners: reduces static and improves wet combability
• Leave-on styling formulations: flexible hold and enhanced sensory feel
• Skin care and body wash: modifies surface wetting behavior and delivers a smooth after-feel
• Aqueous gel systems: rheology modifier contributing to viscosity stability
• It maintains a lightweight, non-tacky finish without heavy residue.

Good to know: Buyers should confirm active content, charge density, and molecular weight range with suppliers.

Commercial specifications

• Active polymer content varies by grade