Ammonium Acrylates Copolymer

AKA: Acrylic Polymer, Film Forming Polymer

Synthetic

Occlusive

Clean

2-Methyl-2-propenoic acid, polymer with 2-propenoic acid or one or more of their simple esters, ammonium salts

CAS #

37809-64-6

Form

Liquid

State

Solid

Functions

Antistatic

Binding

Film Forming

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

Viscosity Controlling

Reduces Static

Holds Formula Together

Creates Protective Barrier

Controls Viscosity

Reduces Inflammation

Locks In Moisture

Creates protective layer

Reduces flyaways

Holds ingredients together

Controls product thickness

Traditional Use

Developed in the late 20th century as a synthetic polymer for use in hair styling products and cosmetic formulations. Created to provide film-forming and holding properties in modern cosmetic applications.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

ewg-2

medical-approval

pregnancy-nursing-safe

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, gentle

Best For

General

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed4 reviews →

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

Verified Jun 2026

Data: CosIng · EWG · CIR