Ethylene/Methacrylate Copolymer

AKA: Ethylene methacrylate copolymer

Synthetic

Occlusive

Clean

OriginDerived from ethylene and methyl methacrylate monomers, both petroleum-based chemicals. Synthesized through free-radical polymerization to create the copolymer chains.

Ethylene/Methacrylate Copolymer is a copolymer of ethylene and methyl methacrylate monomers

Form

Liquid

State

Solid

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-reviewed1 paper →

⚖️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

Concentration Guide

Leave-on0.0003–0.83%

Rinse-offNot reported

0%50%100%

CIR reported use · 2018 survey

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