Polyquaternium-35

Synthetic

Occlusive

Not 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

CAS #

-

Form

Powder

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 cationic polymer developed in the 1990s-2000s. Designed to provide superior conditioning and detangling properties in haircare products with improved rinse-off characteristics.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed1 review →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

Verified Jun 2026

Data: CosIng · EWG · CIR