Isocetyl Isodecanoate
AKA “RefChem:791690, 129588-05-2, Isodecanoic acid, isohexadecyl ester, SCHEMBL5873242, DTXSID501021690
Emollient
Ingredient Facts
Isocetyl isodecanoate
AKA: RefChem:791690, 129588-05-2, Isodecanoic acid, Isohexadecyl ester, SCHEMBL5873242, DTXSID501021690
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Not Clean
Isodecanoic acid, isohexadecyl ester
Formula
C26H52O2
Mol. Weight
396.70
CAS #
129588-05-2
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
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
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR