Dilinoleic Acid/Butanediol Copolymer
AKA “Dilinoleic Acid/Butanediol Copolymer
Acid
Ingredient Facts
Dilinoleic acid/butanediol copolymer
Acid · Film Forming · EWG: 1
Plant-Derived Synthetic
Occlusive
Plant Oil
Acid
Clean
Dilinoleic Acid/Butanediol Copolymer is a copolymer of dilinoleic acid and 1,4-butanediol monomers
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Plasticiser
Moisturizing
Strengthens Barrier
Creates protective layer
Adds flexibility
Traditional Use
A modern synthetic polymer developed as a film-forming and conditioning agent in contemporary skincare products. Created to provide texture, spreadability, and skin-conditioning benefits in cosmetic formulations.
Skin Types
all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
ewg-1
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR