murphyOleyl Alcohol
AKA: (Z)-octadec-9-en-1-ol, 143-28-2, Ocenol, Cis-9-Octadecen-1-ol, Dermaffine, Lancol, Novol, Oceol, Oleol
Synthetic
Emollient
Fragrance
Solvent
Skin Conditioner
Clean
OriginDerived from oleic acid, a long-chain fatty acid found in plant and animal oils. Produced through catalytic hydrogenation of oleic acid to reduce its double bond.
(9Z)-octadecen-1-ol is a long chain fatty alcohol that is octadecanol containing a double bond located at position 9 (the Z-geoisomer). It has a role as a metabolite and a nonionic surfactant. It is a long-chain primary fatty alcohol and a fatty alcohol 18:1.
Solubility Insol in water; sol in alcohol, ether
Formula
C18H36O
Mol. Weight
268.50
CAS #
143-28-2, 593-47-5
Form
Liquid
State
Liquid; Liquid, Other Solid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Viscosity Controlling
Locks In Moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
Product formulation test found no phototoxicity in the CIR safety assessment (CIR 186)
Mixed Eye Irritation Results
3 studies / 2 irritating / 1 not irritating (CIR 186)
Mixed Skin Irritation Results
9 studies / 5 irritating / 2 mixed / 2 not irritating / reactions minimal to severe (CIR 186)
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR