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Dilinoleic Acid
AKA “5-dihexylcyclohex-2-ene-1-octanoic acid, EINECS 256-337-0, Linoleic acid dimer, Hystrene 3695, CENTURY D 77, NSC-30202, 12-OCTADECADIENOIC ACID, DIMER”
Synthetic
Ingredient Facts
Dilinoleic acid
AKA: 5-dihexylcyclohex-2-ene-1-octanoic acid, EINECS 256-337-0, Linoleic acid dimer, Hystrene 3695, CENTURY D 77, NSC-30202, 12-OCTADECADIENOIC ACID, DIMER
Synthetic · Emollient · EWG: 5
Synthetic
Emollient
Skin Conditioner
Plant Oil
Synthetic
Clean
A lightweight oil derived from sunflower and safflower seeds that softens and conditions skin and hair, leaving them smooth and supple without a greasy feel.
Formula
C36H64O4
Mol. Weight
560.90
CAS #
6144-28-1, 26085-09-6
State
Solid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Softens & Smooths
Smooths and softens skin
Melanin-Rich Skin
Suitable
EWG
5
CIR
—
Pregnancy
—
CIR Safety Findings
Not a Sensitizer
all-shades-safe
Regulatory Status
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Regulatory Agencies
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics.
Cherian PA, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD et al.
International journal of toxicology, 2023
→
Amended Safety Assessment of Dialkyl Dimer Dilinoleates as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Amended Safety Assessment of Diisopropyl Dimer Dilinoleate, Dicetearyl Dimer Dilinoleate, Diisostearyl Dimer Dilinoleate, Dioctyl Dimer Dilinoleate, Dioctyldodecyl Dimer Dilinoleat
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Tentative Report: Safety Assessment of Dimer Dilinoleates as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Bis-Behenyl/Phytosteryl Dimer Dilinoleate
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)
→
Di-C16-18 Alkyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Di-C20-40 Alkyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dicetearyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Diethylhexyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Diisopropyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Diisostearyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dilinoleic Acid/Butanediol Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dimer Dilinoleyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Dioctyldodecyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Ditridecyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Dimer Dilinoleth-20
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Dimer Dilinoleth-30
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Dimer Dilinoleth-40
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Dimer Dilinoleth-60
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Dimer Dilinoleth-80
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Octyldodecyl/PPG-3 Myristyl Ether Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-8 Dimethicone Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-8 Dimethicone/Dimer Dilinoleic Acid Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Phytosteryl Isostearyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Sorbeth-2/Oleate/Dimer Dilinoleate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Stearyl/PPG-3 Myristyl Ether Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Triisostearoyl Polyglyceryl-3 Dimer Dilinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Bis Behenyl/Isostearyl/Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Bis-Behenyl/Phytosteryl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Di-C20-40 Alkyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Diisopropyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Diisostearoyl Polyglyceryl 3 Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Diisostearyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dilinoleic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dilinoleic Acid/Butanediol Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dimer Dilinoleyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Dioctyldodecyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Phytosteryl Isostearyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Stearyl/PPG-3 Myristyl Ether Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Triisostearoyl Polyglyceryl-3 Dimer Dilinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Final report on the amended safety assessment of diisopropyl dimer dilinoleate, dicetearyl dimer dilinoleate, diisostearyl dimer dilinoleate, dioctyl
Fiume MZ, Cosmetic Ingredients Review Expert Panel
International journal of toxicology, 2003
→
Final report on the amended safety assessment of diisopropyl dimer dilinoleate, dicetearyl dimer dilinoleate, diisostearyl dimer dilinoleate, dioctyl
Fiume MZ, Cosmetic Ingredients Review Expert Panel
International journal of toxicology, 2003
→
Antitumor efficacy of poly(dimer acid-dodecanedioic acid) copolymer in mice bearing Sarcoma-180 tumor.
Guo WX, Shi Z, Zeng FB, Liang K, Chen XH et al.
Journal of materials science. Materials in medicine, 2007
→
Efficacy of an emollient containing diethylene glycol/dilinoleic acid copolymer for the treatment of dry skin and pruritus in patients with senile xer
Izumi R, Negi O, Suzuki T, Tominaga M, Kamo A et al.
Journal of cosmetic dermatology, 2017
→
Verified Feb 2026
Data: PubChem · CosIng · EWG