Behenyl Methacrylate/Perfluorooctylethyl Methacrylate Copolymer
molecular structure · PubChem
AKA: Fluorinated behenyl methacrylate copolymer
Synthetic
Occlusive
Not Clean
Behenyl Methacrylate/Perfluorooctylethyl Methacrylate Copolymer is a copolymer of behenyl methacrylate and Perfluorooctylethyl Methacrylate monomers
CAS #
92-44-4
Form
Liquid
State
Solid
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Creates Protective Barrier
Controls Viscosity
Creates protective layer
Controls product thickness
Traditional Use
A highly specialized synthetic polymer developed in late 20th-century cosmetics to create water- and oil-repellent coatings on skin and hair.
EWG
4
CIR
Safe as used
Pregnancy
—
Restricted By
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR