Ethylene/Sodium Acrylate Copolymer

Synthetic

Occlusive

Emulsifier

Not Clean

2-Propenoic acid, polymer with ethene, sodium salt;2-Propenoic acid, sodium salt, polymer with ethene

CAS #

25750-82-7, 25749-98-8

State

Solid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Binding

Emulsion Stabilising

Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.

Film Forming

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

Opacifying

Holds Formula Together

Stabilizes Emulsion

Creates Protective Barrier

Adds Opacity

Creates protective layer

Holds ingredients together

Keeps product blended

Creates creamy opacity

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

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

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

CIR's newest survey reports no concentration of use.

CIR · 2018 survey

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

Verified Jun 2026

Data: CosIng · EWG · CIR