Polyquaternium-35
AKA “PQ-35, Polyquaternium-35
Synthetic
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Ingredient Facts
Polyquaternium-35
AKA: PQ-35
Synthetic · Antistatic | Film Forming · EWG: 4
Plant-Derived
Occlusive
Synthetic
Clean
Ethanaminium, N-carboxymethyl-N,N-dimethyl-2-(2-methyl-1-oxo-2-propenyloxy)-, inner salt, polymer with N,N,N-trimethyl-2-(2-methyl-1-oxo-2-propenyloxy)ethanaminium methyl sulfate Science: Functions: Antistatic, Film Forming Safety Ratings: CIR: Safe as used
CAS #
-
Form
Powder
Plant-Derived
Synthetic. Synthesized from acrylic monomers including dimethylaminoethyl methacrylate and acryloyl derivatives. Produced through free radical polymerization of quaternized monomers in aqueous solution.
Function
Antistatic | Film Forming
Benefits
Reduces Static
Creates Protective Barrier
Creates protective layer
Reduces flyaways
Traditional Use
A synthetic cationic polymer developed in the 1990s-2000s. Designed to provide superior conditioning and detangling properties in haircare products with improved rinse-off characteristics.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR