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Bis-hydroxyethyl acrylate poly (1,4-butanediol) -9/tmhdi copolymer
AKA “1, 4-Butanediol -9/TMHDI Copolymer”
Ingredient
Ingredient Facts
Bis-hydroxyethyl acrylate poly (1,4-butanediol) -9/tmhdi copolymer
AKA: 4-Butanediol -9/TMHDI Copolymer
Ingredient · Film Forming · EWG: 4
Synthetic
Occlusive
Not Clean
Bis-Hydroxyethyl Acrylate Poly(1,4-Butanediol)-9/TMHDI Copolymer is a copolymer of poly(1,4-butanediol)-9 and trimethylhexanediisocyanate (TMHDI) end-capped with hydroxyethylacrylate.
CAS #
82339-15-9
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.
Creates Protective Barrier
Locks In Moisture
Fights Bacteria
Antioxidant Protection
Traditional Use
A synthetic polymer developed for modern cosmetics to provide film-forming and water-resistant properties in makeup and personal care products, with no traditional use history.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
1,4-Butanediol
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
1,4-Butanediol/Succinic Acid/Adipic Acid/HDI Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Bis-Hydroxyethyl Acrylate Poly(1,4-Butanediol)-9/TMHDI Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Bis-Isostearyl 1,4-Butanediol/HDI/Hydrogenated Dimer Dilinoleyl Alcohol Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
A review of the metabolism of 1,4-butanediol diglycidyl ether-crosslinked hyaluronic acid dermal fillers.
De Boulle K, Glogau R, Kono T, Nathan M, Tezel A et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2013
→
A review of the metabolism of 1,4-butanediol diglycidyl ether-crosslinked hyaluronic acid dermal fillers.
De Boulle K, Glogau R, Kono T, Nathan M, Tezel A et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2013
→
A review of the metabolism of 1,4-butanediol diglycidyl ether-crosslinked hyaluronic acid dermal fillers.
De Boulle K, Glogau R, Kono T, Nathan M, Tezel A et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2013
→
A review of the metabolism of 1,4-butanediol diglycidyl ether-crosslinked hyaluronic acid dermal fillers.
De Boulle K, Glogau R, Kono T, Nathan M, Tezel A et al.
Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.], 2013
→
1,4-Butanediol
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Verified Jun 2026
Data: CosIng · EWG · CIR