Potassium Acrylates Copolymer

AKA: Potassium polyacrylates copolymer

Synthetic

Occlusive

Not Clean

OriginDerived from acrylic acid and methacrylic acid or their simple esters, belonging to the acrylic polymer chemical family. Synthesized through free-radical polymerization of monomers, then neutralized with potassium hydroxide to form the potassium salt.

Potassium Acrylates Copolymer is the potassium salt of a polymer consisting of acrylic acid, methacrylic acid or one of their simple esters

CAS #

-

Form

Liquid

State

Solid

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Binding

Film Forming

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

Holds Formula Together

Creates Protective Barrier

Creates protective layer

Holds ingredients together

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed1 review →

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

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

Leave-on1.3%

Rinse-off0.00031–0.31%

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