Acrylates/Beheneth-25 Methacrylate/Steareth-30 Methacrylate Copolymer

AKA: Hair Conditioning Polymer, Film Forming Agent
Plant-Derived
Occlusive
Not Clean
OriginDerived from acrylic acid and methacrylate monomers, which are petroleum-based chemical compounds. Synthesized through free-radical polymerization of acrylate and methacrylate monomers to form a copolymer.
Acrylates/Beheneth-25 Methacrylate/Steareth-30 Methacrylate Copolymer is a copolymer of beheneth-25 methacrylate, steareth-30 methacrylate and one or more monomers consisting of acrylic acid, methacrylic acid or one of their simple esters; Docosanylpoly(oxyethane-1,2-diyl) 2-methyl-2-propenoate (25 mol EO average), polymer with octadecylpoly(oxyethane-1,2-diyl) 2-methyl-2-propenoate (30 mol EO average) and one or more of 2-propenoic acid, 2-methyl-2-propenoic acid, or one of their simple esters
CAS #
888492-33-9
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2018
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR