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Hydroxyoctacosanyl Hydroxystearate
AKA “2-Hydroxyoctacosyl 12-hydroxyoctadecanoate, 93840-71-2, EINECS 298-937-5, B828OBJ1V7, ELFACOS C 26, DTXSID20869131, Octadecanoic acid, 12-hydroxy-, 2-hydroxyoctacosyl ester, 2-HYDROXYOCTACOSYL 12-HYDROXYSTEARATE, AEC HYDROXYOCTACOSANYL HYDROXYSTEARATE”
Emollient
Ingredient Facts
Hydroxyoctacosanyl hydroxystearate
AKA: 2-Hydroxyoctacosyl 12-hydroxyoctadecanoate, 93840-71-2, EINECS 298-937-5, B828OBJ1V7, ELFACOS C 26, DTXSID20869131, Octadecanoic acid, 12-hydroxy-, 2-hydroxyoctacosyl ester, 2-HYDROXYOCTACOSYL 12-HYDROXYSTEARATE, AEC HYDROXYOCTACOSANYL HYDROXYSTEARATE
Emollient · Emollient · EWG: 1
Plant-Derived
Emollient
Skin Conditioner
Clean
2-Hydroxyoctacosyl 12-hydroxyoctadecanoate
Effective at 7.78%
Formula
C46H92O4
Mol. Weight
709.20
CAS #
93840-71-2
Form
Liquid
See origin →
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
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.05%
15.5%
0%22%
Effective Range
CIR reported use: 0.5-13 | 0.05-15.5
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR