Isocetyl Isodecanoate
molecular structure · PubChem
AKA: 129588-05-2, Isodecanoic acid, Isohexadecyl ester
Synthetic
Emollient
Skin Conditioner
Not Clean
Isodecanoic acid, isohexadecyl ester
Formula
C26H52O2
Mol. Weight
396.70
CAS #
129588-05-2
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
Synthetic ester developed as a cosmetic emollient in the late 20th century. Created to provide superior skin conditioning and a smooth, silky texture in skincare and color cosmetic formulations.
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: PubChem · CosIng · EWG · CIR