murphyMyristyl Myristate
AKA: Tetradecyl tetradecanoate, Tetradecyl myristate, Tetradecanoic acid, Tetradecyl ester, Myristic acid, Schercemol MM, Alkamuls MM/M
Synthetic
Emollient
Skin Conditioner
Clean
OriginDerived from myristic acid, a saturated fatty acid found in plant oils like coconut and nutmeg. Synthesized through esterification of myristic acid with myristyl alcohol under catalytic conditions.
Tetradecyl tetradecanoate is a tetradecanoate ester (myristate ester) resulting from the formal condensation of the carboxy group of tetradecanoic acid (myristic acid) with the hydroxy group of tetradecan-1-ol (myristyl alcohol). Used as an emollient. It has a role as an algal metabolite. It is a wax ester and a tetradecanoate ester. It is functionally related to a tetradecan-1-ol.
Formula
C28H56O2
Mol. Weight
424.70
CAS #
3234-85-3
Form
Liquid
State
Other Solid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
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.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
4 studies / 4 not sensitizing (CIR 229 and 504)
Comedogenic in Testing
Animal test found comedogenicity in the CIR safety assessment (CIR 504 CIR 623)
Mixed Eye Irritation Results
3 studies / 2 irritating / 1 mixed / reactions minimal (CIR 229 and 504 and 623)
Mixed Skin Irritation Results
5 studies / 3 irritating / 1 mixed / 1 not irritating / reactions minimal to mild (CIR 229 and 504 and 623)
Concentration Guide
Leave-on0.5–17%
Rinse-off0.5–4%
0%50%100%
CIR reported use · 2012 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR