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Ethylene/Magnesium Acrylate Copolymer
AKA “Magnesium acrylate copolymer”
Ingredient
Ingredient Facts
Ethylene/magnesium acrylate copolymer
Ingredient · Film Forming · EWG: 4
Synthetic
Occlusive
Not Clean
2-Propenoic acid, polymer with ethene, magnesium salt
CAS #
27515-37-3
Form
Liquid
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
Traditional Use
A synthetic copolymer developed for the cosmetics industry. Used as a texture modifier and suspension agent in creams and lotions.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR