murphyTricaprylyl/Capryl Trimellitate
molecular structure · PubChem
AKA: Trimellitate Plasticizer, Caprylic Trimellitate
Synthetic
Emollient
Skin Conditioner
Not Clean
OriginDerived from coconut, palm kernel, or other plant-based fatty acids and trimellitic acid. Produced through esterification of trimellitic acid with fatty alcohols derived from plant oils.
1,2,4-Benzenetricarboxylic acid, triesters with mixed decyl and octyl alcohols
CAS #
90218-76-1
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Plasticiser
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.
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
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 690)
Not an Eye Irritant
1 study / 1 not irritating (CIR 690)
Skin Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 690)
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR