VA/Butyl Maleate/Isobornyl Acrylate Copolymer

AKA: Vinyl Acetate/Butyl Maleate/Isobornyl Acrylate Copolymer
Synthetic
Occlusive
Clean
2-Butenedioic acid (2Z)-, dibutyl ester, polymer with ethenyl acetate and rel-(1R,2R,4R)-1,7,7-trimethylbicyclo[2.2.1]hept-2-yl 2-propenoate
Formula
C29H46O8
Mol. Weight
522.7
CAS #
136392-68-2
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.
Creates Protective Barrier
Traditional Use
A modern synthetic polymer developed for cosmetics. Used as a film-forming and waterproofing agent in makeup, nail products, and long-wear cosmetic formulations.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed3 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR