Butyl Methacrylate/Acryoyloxy PG Methacrylate Copolymer

AKA: Film-forming polymer

Synthetic

Occlusive

Not Clean

2-Propenoic acid, 2-methyl-, butyl ester, polymer with 2-oxiranylmethyl 2-methyl-2-propenoate, 2-propenoate, tert-Bu 2-ethylhexaneperoxoate-initiated

CAS #

1431551-12-0

Form

Liquid

State

Solid

Functions

Film Forming

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

Anti-Inflammatory

Boosts Collagen

Wound Healing

Creates protective layer

Traditional Use

Modern synthetic copolymer developed as a film-forming agent and suspending agent in cosmetics. Designed to improve product texture, wear-resistance, and aesthetic properties.

EWG

CIR

Safe as used

Pregnancy

Caution

CIR Safety Findings

Not a Sensitizer

medical-approval

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

Best For

General

Pregnancy & Breastfeeding Safe

Caution

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory0 listings

🛡️Safety-assessed1 review →

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

Verified Jun 2026

Data: CosIng · EWG · CIR