Oleyl Linoleate

Oleyl Linoleate molecular structure
molecular structure · PubChem
AKA: 17673-59-5, 9Z-octadecenyl 9Z, 12Z-octadecadienoate, LINOLEIC ACID, OLEYL ESTER, WE(18:1(9Z)/18:2(9Z, 12Z)), (9Z)-9-octadecenyl ester, 9-OCTADECEN-1-OL
Synthetic
Emollient
Skin Conditioner
Not Clean
9-(Z)-Octadecenyl esters (9Z,12Z)-octadeca-9,12-dienoate
Formula
C36H66O2
Mol. Weight
530.90
CAS #
17673-59-5
Form
Liquid
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
Developed as a synthetic ester combining oleyl alcohol with linoleic acid. Created to provide skin conditioning and emollient properties in modern cosmetic formulations.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR