activesStandard

Polyquaternium-11

PQ-11

film formerconditioningviscosity modifier
CAS Number:53633-54-8

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.

Creates smooth, even coverage
Provides long-lasting hold
Enhances water resistance
Improves product wear time

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

SODIUM LAURYL SULFATEIncompatiblePrecipitation

Cationic quats + Anionic SLS form insoluble precipitate, neutralizing both the disinfectant and the surfactant. Use nonionic surfactants with quat-based disinfectants.

Compatibility analysis powered by OpenMix — open-source formulation science

Sustainability Profile

Sustainability Score

4/10

Biodegradability

not readily biodegradable

Source

synthetic

Feedstock

petroleum-derived monomers

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