Adipic Acid/CHDM/MA/Neopentyl Glycol/Trimellitic Anhydride Copolymer

AKA: Polyester polymer, Film former

Synthetic

Occlusive

Acid

Not Clean

Copolymer of adipic acid cyclohexanedimethanol (CHDM), maleic anhydride (MA), neopentyl glycol and trimellitic anhydride monomers

CAS #

92-44-4

Form

Powder

State

Solid

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

Antioxidant Protection

Fights Bacteria

Traditional Use

A complex synthetic polymer developed in the late 20th century for cosmetic use. Engineered to provide film-forming and texture-enhancing properties in skincare and makeup products.

EWG

CIR

Insufficient data

Pregnancy

Yes

CIR Safety Findings

all-shades-safe

Potential Sensitizer

Regulatory Status

USAunder review

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

Yes

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed1 review →

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

Verified Jun 2026

Data: CosIng · EWG · CIR