Isotridecyl Stearate
AKA “Octadecanoic acid, isotridecyl ester, EINECS 250-703-3, UNII-J8793TKA30, EXCEPARL TD-S, J8793TKA30, RefChem:150078, DTXSID9029352, ISOTRIDECYL STEARATE [INCI], 250-703-3
Skin Conditioning
Ingredient Facts
Isotridecyl stearate
AKA: Octadecanoic acid, Isotridecyl ester, EINECS 250-703-3, UNII-J8793TKA30, EXCEPARL TD-S, J8793TKA30, RefChem:150078, DTXSID9029352, ISOTRIDECYL STEARATE [INCI], 250-703-3
Skin Conditioning · Skin Conditioning · EWG: 4
Plant-Derived
Skin Conditioner
Plant Oil
Not Clean
Stearic acid, isotridecyl ester
Formula
C31H62O2
Mol. Weight
466.80
CAS #
31565-37-4
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.
Locks in moisture
Traditional Use
A synthetic ester developed as a cosmetic emollient and thickening agent. Used to improve the texture and stability of skincare and color cosmetic products.
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