1,4-Butanediol/Succinic Acid/Adipic Acid/HDI Copolymer

1,4-Butanediol/Succinic Acid/Adipic Acid/HDI Copolymer molecular structure
molecular structure · PubChem
AKA: Polyester Copolymer
Synthetic
Occlusive
Acid
Not Clean
OriginSynthesized from petroleum-derived monomers including 1,4-butanediol, succinic acid, adipic acid, and HDI through esterification and polymerization reactions. Produced via step-growth polymerization where monomers chemically bond to form a cross-linked polymer network.
Hexanedioic acid, polymer with butanedioic acid, 1,4-butanediol and 1,6-diisocyanatohexane
CAS #
119553-67-2
State
Solid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Abrasive
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Physical Exfoliant
Holds Formula Together
Creates Protective Barrier
Gently polishes surface
Creates protective layer
Holds ingredients together
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2016
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR