Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate

AKA: Plant Sterol Dimer Dilinoleate, Phytosterol Dimer Linoleate

Plant-Derived

Skin Conditioner

Hair Care

Clean

9,12(Z,Z)-Octadecadienoic acid dimer, diester with plant sterols, isooctadecanol, hexadecanol, octadecanol and docosanol

Form

Liquid

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

Traditional Use

A complex synthetic ester combining multiple fatty alcohols and linoleic acid derivatives. Developed for modern skincare products as an advanced emollient and conditioning ingredient.

EWG

CIR

Insufficient data

Pregnancy

Yes

CIR Safety Findings

all-shades-safe

Regulatory Status

USAunder review

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

Dryness

Pregnancy & Breastfeeding Safe

Yes

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.

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Verified Jun 2026

Data: CosIng · EWG · CIR