Propylene Glycol Linoleate
molecular structure · PubChem
AKA: Propylene glycol 2-linoleate, 1, 2-Propylene glycol 2-linoleate, 9, 12-Octadecadienoic acid, 2-hydroxypropyl ester, 59104-83-5, 2-hydroxy-1-methylethyl ester, PROPYLENE GLYCOL MONOLINOLEATE
Synthetic
Cleanser
Skin Conditioner
Not Clean
9,12-Octadecadienoic acid, 2-hydroxypropyl ester
Effective at 1.0%
Formula
C21H38O3
Mol. Weight
338.50
CAS #
57-55-6
Form
Liquid
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Locks in moisture
Traditional Use
Synthetic ester of propylene glycol and linoleic acid developed for cosmetics. Designed to provide emollient properties while delivering skin-conditioning benefits of essential fatty acids.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
9.9e-05%
2.0%
0%14%
Reported use
CIR reported use: 0.000099-2
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
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