Propylene Glycol Linolenate
AKA “propylene glycol, 2-propanediol, propane-1, 2-Propylene glycol, 2-dihydroxypropane
Synthetic
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Ingredient Facts
Propylene glycol linolenate
AKA: 2-propanediol, Propane-1, 2-Propylene glycol, 2-dihydroxypropane
Synthetic · Skin Conditioning | Surfactant - Cleansing · EWG: 4
Plant-Derived
Cleanser
Skin Conditioner
Synthetic
Clean
9,12,15-Octadecatrienoic acid, 2-hydroxypropyl ester Science: Functions: Skin Conditioning, Surfactant - Cleansing Safety Ratings: CIR: Safe as used
Formula
C3H8O2
Mol. Weight
76.09
CAS #
57-55-6
Form
Liquid
Plant-Derived
Synthetic. Derived from linolenic acid (an omega-3 polyunsaturated fatty acid) and propylene glycol as starting materials. Synthesized through esterification, chemically bonding linolenic acid to propylene glycol under catalytic conditions.
Function
Skin Conditioning | Surfactant - Cleansing
Benefits
Locks in moisture
Traditional Use
Synthetic ester combining propylene glycol with linolenic acid, developed for cosmetic formulations. Created to provide emollient and skin-conditioning properties similar to plant-based oils.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Concentration Guide
Industry Max
Industry typically uses up to 2.0% in leave-on products (26 products reported). Source: CIR Safety Assessment (CIR Seq 684).
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR