Butylene/Ethylene/Propylene Copolymer
AKA “Plastic polymer, Elastomeric copolymer
Synthetic
Ingredient Facts
Butylene/ethylene/propylene copolymer
AKA: Plastic polymer, Elastomeric copolymer
Synthetic · Emollient · EWG: 1
Synthetic
Emollient
Occlusive
Skin Conditioner
Synthetic
Clean
Butylene/Ethylene/Propylene Copolymer is a copolymer of butylene, ethylene and propylene monomers Science: Functions: Film Forming 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.
Viscosity Controlling
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Smoothing
Creates Protective Barrier
Traditional Use
Synthetic polymer created for modern cosmetic use. Provides film-forming and conditioning properties in skincare and color cosmetic products.
Skin Types
all-skin-types, gentle
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR