Behenyl Methacrylate/Perfluorooctylethyl Methacrylate Copolymer
AKA “Fluorinated behenyl methacrylate copolymer
Synthetic
Ingredient Facts
Behenyl methacrylate/perfluorooctylethyl methacrylate copolymer
AKA: Fluorinated behenyl methacrylate copolymer
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Occlusive
Skin Conditioner
Synthetic
Clean
Behenyl Methacrylate/Perfluorooctylethyl Methacrylate Copolymer is a copolymer of behenyl methacrylate and Perfluorooctylethyl Methacrylate monomers Science: Functions: Film Forming, Viscosity Controlling Safety Ratings: CIR: Safe as used
CAS #
92-44-4
Form
Liquid
State
Solid
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Water-Resistant Agent
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.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
EWG
4
CIR
Insufficient
Pregnancy
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR