Isostearyl Avocadate
molecular structure · PubChem
AKA: Isostearyl avocado oil ester, Isostearyl avocado derivative
Plant-Derived
Emollient
Skin Conditioner
Plant Oil
Not Clean
Fatty acids, avocado-oil, isooctadecyl esters
Effective at 43.75%
CAS #
90990-06-0
Form
Liquid
Functions
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.
Locks In Moisture
Traditional Use
A synthetic ester combining isostearyl alcohol with avocado oil derivatives. Developed to provide the emollient and conditioning benefits of avocado oil in a more stable, cosmetically elegant form.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.5%
87.0%
0%100%
Reported use
CIR reported use: 0.9-16 | 0.5-87
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR