Polyglyceryl-3 oleate

AKA: 33940-98-6, Oleic acid, Monoester with triglycerol, Triglycerol monooleate, CAPROL 3GO, SUNSOFT A-17C, ISOLAN GO 33, SUNSOFT A-171C, TRIGLYCERIN MONOOLEATE
Synthetic
Cleanser
Emulsifier
Clean
OriginDerived from polyhydric alcohol (glycerin) and oleic acid, a fatty acid from plant oils. Synthesized through esterification of glycerol with oleic acid under catalytic conditions.
ester of triglycerol and oleic acid
Formula
C27H52O8
Mol. Weight
504.70
CAS #
33940-98-6
Form
Oil
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsifier
Brightens Skin
Mixes Oil & Water
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
Skin Irritant in Testing
1 study / 1 irritating / reactions moderate (CIR 717)
Eye Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 717)
Concentration Guide
Leave-on1.2–1.5%
Rinse-offNot reported
0%50%100%
CIR reported use · report published 2023
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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