Polyquaternium-33
AKA “PQ-33, Polyquaternium-33”
Ingredient
Ingredient Facts
Polyquaternium-33
AKA: PQ-33
Ingredient · Film Forming · EWG: 4
Synthetic
Occlusive
Not Clean
Ethanaminium, N,N,N-trimethyl-2-(1-oxo-2-propenyl)oxy-, chloride, polymer with 2-propenamide
CAS #
69418-26-4
Form
Powder
See origin →
Functions
Antistatic
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Reduces Static
Creates Protective Barrier
Creates protective layer
Reduces flyaways
Traditional Use
A synthetic polymer developed in the 1990s for cosmetic formulations. Engineered to provide conditioning and styling benefits with enhanced compatibility in complex cosmetic systems.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR