murphyAscorbyl Isostearate
AKA: ORISTAR AIS, OLI-2192 ASCORBYL ISOSTEARATE, ASCORBYL ISOSTEARATE [INCI]
Plant-Derived
Skin Conditioner
Not Clean
OriginDerived from ascorbic acid (vitamin C) and isostearic acid, typically sourced from plant oils. Produced through esterification, chemically bonding vitamin C with isostearic acid to improve stability.
Ascorbyl Isostearate is the ester of Ascorbic Acid and isostearic acid
Formula
C24H42O7
Mol. Weight
442.60
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Sun Damage
Pregnancy & Breastfeeding Safe
Yes
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.
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR