Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate
molecular structure · PubChem
AKA: Plant Sterol Dimer Dilinoleate, Phytosterol Dimer Linoleate
Plant-Derived
Skin Conditioner
Hair Care
Clean
OriginDerived from plant-based oils (soybean, canola, or safflower) and plant sterols combined with fatty alcohols. Synthesized through esterification reactions linking linoleic acid dimers with botanical sterols and aliphatic alcohols.
9,12(Z,Z)-Octadecadienoic acid dimer, diester with plant sterols, isooctadecanol, hexadecanol, octadecanol and docosanol
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
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.
Viscosity Controlling
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
1
CIR
Insufficient data
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
3 studies / 3 not irritating (CIR 928)
Not a Sensitizer
2 studies / 2 not sensitizing (CIR 928)
Eye Irritant in Testing
1 study / 1 irritating / reactions minimal (CIR 928)
Concentration Guide
Leave-on0.6–30%
Rinse-offNot reported
0%50%100%
CIR reported use · 2025 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR
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