Ethylene/Sodium Acrylate Copolymer
AKA “Sodium acrylate copolymer
Synthetic
Ingredient Facts
Ethylene/sodium acrylate copolymer
Synthetic · Emulsion Stabilising · EWG: 4
Synthetic
Occlusive
Emulsifier
Synthetic
Clean
A natural polymer that helps bind ingredients together and creates a smooth, even texture. It keeps products from separating and forms a protective layer on skin or hair.
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
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
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