Stearyl Methacrylate/Perfluorooctylethyl Methacrylate Copolymer
AKA “Fluorinated polymer, Film-forming copolymer
Ingredient
Ingredient Facts
Stearyl methacrylate/perfluorooctylethyl methacrylate copolymer
AKA: Fluorinated polymer, Film-forming copolymer
Ingredient · Film Forming · EWG: 4
Plant-Derived
Occlusive
Plant Oil
Not Clean
Stearyl Methacrylate/Perfluorooctylethyl Methacrylate Copolymer is a Copolymer of Stearyl Methacrylate and Perfluorooctylethyl Methacrylate monomers
CAS #
92-44-4
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.
Viscosity Controlling
Creates Protective Barrier
Controls Viscosity
Creates protective layer
Controls product thickness
Traditional Use
Synthesized in late 20th century as a specialized polymer combining stearyl methacrylate with fluorinated monomers. Created for advanced skincare and cosmetic formulations requiring water and stain resistance properties.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Stearyl Methacrylate/Perfluorooctylethyl Methacrylate Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Safety Assessment of Polyfluorinated Polymers as Used in Cosmetics.
Johnson W Jr, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
Verified Jun 2026
Data: CosIng · EWG · CIR