Polysilicone-11

OriginPolysilicone-11 is a synthetic silicone polymer derived from siloxane compounds and organic monomers. It is synthesized through condensation polymerization of silicone precursors with organic linking agents.

Cyclosiloxanes, dimethyl, polymers with dimethyl, methyl hydrogen siloxanes and vinyl-group terminated dimethylsiloxanes

CAS #

63394-02-5

Form

Liquid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Film Forming

Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.

Creates Protective Barrier

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed3 reviews →

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

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Skin Irritant

8 studies / 8 not irritating (CIR 797)

Not a Sensitizer

6 studies / 6 not sensitizing (CIR 797)

Mixed Eye Irritation Results

2 studies / 1 irritating / 1 mixed / reactions minimal (CIR 797)

Concentration Guide

Leave-on0.025–19.9%

Rinse-off0.061–5.8%

0%50%100%

CIR reported use · report published 2024

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR