Acrylates/Steareth-20 Methacrylate Crosspolymer
AKA “Acrylic copolymer, Film-forming polymer
Ingredient
Ingredient Facts
Acrylates/steareth-20 methacrylate crosspolymer
AKA: Acrylic copolymer, Film-forming polymer
Ingredient · Film Forming · EWG: 4
Plant-Derived
Occlusive
Not Clean
Acrylates/Steareth-20 Methacrylate Crosspolymer is a copolymer of steareth-20 methacrylate and one or more monomers consisting of acrylic acid, methacrylic acid or one of their simple esters, crosslinked with an allyl ether of pentaerythritol or an allyl ether of trimethylolpropane
CAS #
-
Form
Liquid
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 cross-linked synthetic polymer developed for the cosmetics industry in the late 20th century. Used to stabilize emulsions and improve texture 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
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR