Vinyl Acetate/Crotonic Acid Copolymer

Vinyl Acetate/Crotonic Acid Copolymer molecular structure
molecular structure · PubChem
AKA: VA/CA Copolymer
Synthetic
Skin Conditioner
Acid
Not Clean
Vinyl Acetate/Crotonic Acid Copolymer is a cosmetic ingredient. Assessed as safe by the CIR.
CAS #
25609-89-6
State
Solid
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Film Forming
Antioxidant
Anti-Inflammatory
Boosts Collagen
Traditional Use
Developed in the mid-20th century as a synthetic polymer. This copolymer was formulated to create film-forming properties in cosmetics, used primarily in hair styling products and nail polish to provide hold and adhesion.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Phototoxicity Concern
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR