murphyPhytosteryl Isostearyl Dimer Dilinoleate
molecular structure · PubChem
AKA: Plant Sterol Ester
Plant-Derived
Emollient
Skin Conditioner
Hair Care
Clean
OriginTypically derived from vegetable oils such as soybean or canola oil, containing linoleic acid and plant sterols.
Synthesized through esterification of phytosterols and isostearyl alcohol with linoleic acid dimers under catalytic conditions.
9,12(Z,Z)-Octadecadienoic acid dimer, diester with (3-.beta.)-sigmast-5-en-3-ol and isooctadecanol
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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
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
Insufficient data
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 928)
Eye Irritant in Testing
1 study / 1 irritating / reactions minimal (CIR 928)
Mixed Skin Irritation Results
3 studies / 1 irritating / 2 not irritating / reactions mild (CIR 928)
Concentration Guide
Leave-on0.099%
Rinse-offNot reported
0%50%100%
CIR reported use · 2025 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR