Phytosteryl Isostearyl Dimer Dilinoleate
molecular structure · PubChem
AKA: Plant Sterol Ester
Plant-Derived
Emollient
Skin Conditioner
Hair Care
Clean
9,12(Z,Z)-Octadecadienoic acid dimer, diester with (3-.beta.)-sigmast-5-en-3-ol and isooctadecanol
Form
Liquid
Functions
Binding
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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
Traditional Use
A complex synthetic ester combining multiple plant-derived components. Created for advanced cosmetic formulations as an emollient and conditioning agent without historical precedent.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR