Ammonium Myristyl Sulfate

AKA: Ammonium tetradecyl sulfate, Ammonium tetradecyl sulphate, 52304-21-9, 1-Tetradecanol, Hydrogen sulfate, Ammonium salt, TETRADECYL AMMONIUM SULFATE
Synthetic
Cleanser
Not Clean
OriginDerived from myristic acid and ammonia, both petroleum-derived or plant oil-sourced compounds. Synthesized through sulfation of myristyl alcohol followed by neutralization with ammonia.
Ammonium tetradecyl sulphate
Formula
C14H33NO4S
Mol. Weight
311.48
CAS #
52304-21-9
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foaming
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Removes Impurities
Creates Lather
Cleansing Surfactant
Reduces Inflammation
Locks In Moisture
Removes dirt and impurities
Creates cleansing foam
Lifts away dirt and oil
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2010
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR