Phytosteryl Isostearyl Dimer Dilinoleate
AKA “Plant Sterol Ester
Emollient
Ingredient Facts
Phytosteryl isostearyl dimer dilinoleate
AKA: Plant Sterol Ester
Emollient · Emollient · EWG: 1
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
See origin →
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
EWG
1
CIR
Insufficient data
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR