C4-6 Olefin/Styrene Copolymer
AKA “Olefin/Styrene Copolymer, Plastic Polymer
Synthetic
Ingredient Facts
C4-6 olefin/styrene copolymer
AKA: Plastic Polymer
Synthetic · Depilatory · EWG: 4
Synthetic
Skin Conditioner
Synthetic
Clean
Ethenylbenzene copolymer with C4-6 olefins Science: Functions: Depilatory, Skin Conditioning Safety Ratings: CIR: Safe as used
Form
Liquid
State
Solid
See origin →
Functions
Depilatory
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A synthetic polymer created as a film-forming and thickening agent in modern cosmetics, developed to provide texture, stability, and wear resistance in makeup and skincare products.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR