Tetradecyloctadecyl Myristate

AKA: Myristic acid, Tetradecyloctadecyl ester, Tetradecyloctadecyl myristate [INCI], Tetradecanoic acid, 2-tetradecyloctadecyl ester, 231627-81-9, (+-)-TETRADECYLOCTADECYL MYRISTATE
Synthetic
Occlusive
Emulsifier
Skin Conditioner
Not Clean
Myristic acid, tetradecyloctadecyl ester
Formula
C46H92O2
Mol. Weight
677.20
CAS #
231627-81-9
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
Synthetic ester developed for cosmetic use as an emollient and skin conditioning ingredient. Created to replicate natural oil benefits with improved stability and cosmetic properties.
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
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