Acrylates/Beheneth-25 Methacrylate Copolymer
molecular structure · PubChem
AKA: Beheneth-25 Methacrylate Acrylates Copolymer, Hair Conditioning Polymer
Synthetic
Clean
OriginSynthesized from acrylic and methacrylic acid monomers combined with ethoxylated behenyl alcohol (docosanol derivative). Produced through free-radical polymerization of the mixed monomers to form a cross-linked copolymer film-former.
Copolymer formed from the ester of 2-methylpropenoic acid and docosanol, ethoxylated, 25 mol EO (average molar ratio) and one or more monomers of acrylic acid, methacrylic acid or one of their simple esters
CAS #
888492-33-9
Form
Liquid
State
Solid
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Viscosity Controlling
Controls Viscosity
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Skin Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 763)
Eye Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 763)
Concentration Guide
Leave-on0.3–1.7%
Rinse-off0.05–1%
0%50%100%
CIR reported use · 2018 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR
murphy