Butyl Acrylate/Ethylhexyl Methacrylate Copolymer
AKA “Acrylic Copolymer
Synthetic
Ingredient Facts
Butyl acrylate/ethylhexyl methacrylate copolymer
AKA: Acrylic Copolymer
Synthetic · Film Forming · EWG: 2
Synthetic
Occlusive
Synthetic
Clean
2-Propenoic acid, 2-methyl-, 2-ethyhexyl ester, polymer with butyl 2-propenoate Science: Functions: Film Forming, Hair Fixing Safety Ratings: CIR: Safe as used
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.
Hair Fixing
Anti-Inflammatory
Boosts Collagen
Wound Healing
Creates protective layer
Holds hair in place
Traditional Use
A synthetic acrylate copolymer developed for cosmetic applications as a film-former and texture modifier. Created in the late 20th century to improve wear resistance and feel of makeup products.
Skin Types
all-skin-types, gentle
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR