Tetradecyloctadecyl Stearate

Tetradecyloctadecyl Stearate 1
AKA: 2-Tetradecylstearyl stearate, Stearic acid, Tetradecyloctadecyl ester, Tetradecyloctadecyl stearate [INCI], Octadecanoic acid, 2-tetradecyloctadecyl ester, 35325-35-0, (+-)-TETRADECYLOCTADECYL STEARATE
Plant-Derived
Occlusive
Emulsifier
Skin Conditioner
Plant Oil
Not Clean
Stearic acid, tetradecyloctadecyl ester
Formula
C50H100O2
Mol. Weight
733.30
CAS #
35325-35-0
Functions
Binding
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Opacifying
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
Long-chain synthetic ester formulated in modern cosmetics as an emollient and conditioning agent. Developed to provide luxurious texture and skin-conditioning properties without traditional use.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
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.
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR