Adipic Acid/CHDM/MA/Neopentyl Glycol/Trimellitic Anhydride Copolymer
AKA “Polyester polymer, Film former
Acid
Ingredient Facts
Adipic acid/chdm/ma/neopentyl glycol/trimellitic anhydride copolymer
AKA: Polyester polymer, Film former
Acid · Film Forming · EWG: 3
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
See origin →
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.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
3
CIR
Insufficient data
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Potential Sensitizer
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR