INCI Name
Polyquaternium-11
Functions
3 Roles
Sustainability
4/10
Category
actives
What It Does
Polyquaternium-11 is a synthetic cationic polymer created from vinylpyrrolidone and dimethylaminoethyl methacrylate monomers. It forms flexible, non-sticky films on hair and skin that provide excellent hold without stiffness, making it particularly valued in hair styling products and leave-on conditioners. Formulators choose it for its unique ability to maintain styling performance even in high humidity conditions while remaining water-soluble for easy removal, and its compatibility with a wide range of surfactant systems makes it versatile across both rinse-off and leave-on formulations.
Technical Properties
pH Range
3.0-9.0
Optimal working range
Ionic Charge
cationic
Molecular charge type
Viscosity Effect
thickening
Impact on formula thickness
Foaming Ability
medium
Lather generation
Ingredient Compatibility
Known Interactions
Cationic quats + Anionic SLS form insoluble precipitate, neutralizing both the disinfectant and the surfactant. Use nonionic surfactants with quat-based disinfectants.
Sustainability Profile
Sustainability Score
Biodegradability
not readily biodegradable
Source
synthetic
Feedstock
petroleum-derived monomers
Related Ingredients
Similar film formers to explore
Encapsulated Matrixyl 3000 Spheres
Hydrolyzed HA
Carbomer Copolymer
Sea Moss Extract Oil-Soluble
Microcrystalline Cellulose
Quick Reference
- Full INCI Name
- Polyquaternium-11
- Common Name
- PQ-11
- CAS Number
- 53633-54-8
- Category
- actives
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