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Ethylene/Sodium Acrylate Copolymer
AKA “Sodium acrylate copolymer”
Ingredient
Ingredient Facts
Ethylene/sodium acrylate copolymer
Ingredient · Emulsion Stabilising · EWG: 4
Synthetic
Occlusive
Emulsifier
Not Clean
2-Propenoic acid, polymer with ethene, sodium salt;2-Propenoic acid, sodium salt, polymer with ethene
CAS #
25750-82-7, 25749-98-8
State
Solid
See origin →
Functions
Binding
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Opacifying
Holds Formula Together
Stabilizes Emulsion
Creates Protective Barrier
Adds Opacity
Creates protective layer
Holds ingredients together
Keeps product blended
Creates creamy opacity
Traditional Use
A modern synthetic polymer developed for cosmetic applications. Functions as a thickening agent and suspending agent in aqueous cosmetic formulations.
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