Decene/Butene Copolymer
AKA “Decene Butene Copolymer, Polybutene Derivative
Ingredient
Ingredient Facts
Decene/butene copolymer
AKA: Decene Butene Copolymer, Polybutene Derivative
Ingredient · Viscosity Controlling · EWG: 4
Synthetic
Not Clean
1-Decene, polymer with 1-butene
CAS #
30973-93-4
Form
Liquid
State
Solid
See origin →
Functions
Viscosity Controlling
Controls Viscosity
Traditional Use
Developed in the mid-20th century as a synthetic polymer for use in cosmetics and personal care products. Functions as a film-forming agent and texture enhancer with no traditional historical use.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR