Acrylates/Methoxy PEG-4 Methacrylate Copolymer
AKA “Acrylic copolymer, Film-forming polymer
Synthetic
Ingredient Facts
Acrylates/methoxy peg-4 methacrylate copolymer
AKA: Acrylic copolymer, Film-forming polymer
Synthetic · Film Forming · EWG: 4
Synthetic
Occlusive
Skin Conditioner
Hair Care
Synthetic
Clean
Acrylates/Methoxy PEG-4 Methacrylate Copolymer is a copolymer of methoxy PEG-4 methacrylate and one or more monomers of acrylic acid, methacrylic acid or one of their simple esters. Science: Functions: Hair Conditioning Safety Ratings: CIR: Safe as used
Form
Liquid
State
Solid
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Conditions Hair
Softens and detangles hair
Traditional Use
Synthesized as a polymer in modern cosmetic chemistry to provide film-forming and conditioning benefits. Created to improve product performance and skin compatibility in contemporary formulations.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR