Trilinoleic Acid

Trilinoleic Acid 1
molecular structure · PubChem CID 132512836
AKA: LINOLIC ACID TRIMER, TRIMER, 7049-66-3, FATTY ACIDS(C18), UNSATURATED
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Synthetic
Emollient
Skin Conditioner
Acid
Not Clean
OriginTypically derived from plant oils including sunflower, safflower, and soybean oils as starting materials. Synthesized through selective esterification or conjugation of linoleic acid molecules to create the trilinoleic structure.
9,12-Octadecadienoic acid (Z,Z)-, trimer
Formula
C54H96O6
Mol. Weight
841.30
CAS #
7049-66-3
Form
Liquid
State
Solid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Refatting
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Viscosity Controlling
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 777)
Skin Irritant in Testing
1 study / 1 irritating (CIR 777)
Concentration Guide
CIR's newest survey reports no concentration of use.
CIR · 2016 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR