Ammonium Myristyl Sulfate
AKA “Ammonium tetradecyl sulfate, Ammonium tetradecyl sulphate, 52304-21-9, 1-Tetradecanol, hydrogen sulfate, ammonium salt, EINECS 257-834-5, UNII-LW5244PD75, DTXSID5068736, LW5244PD75, TETRADECYL AMMONIUM SULFATE
Surfactant
Ingredient Facts
Ammonium myristyl sulfate
AKA: Ammonium tetradecyl sulfate, Ammonium tetradecyl sulphate, 52304-21-9, 1-Tetradecanol, Hydrogen sulfate, Ammonium salt, EINECS 257-834-5, UNII-LW5244PD75, DTXSID5068736, LW5244PD75, TETRADECYL AMMONIUM SULFATE
Surfactant · Cleansing · EWG: 4
Synthetic
Cleanser
Not Clean
Ammonium tetradecyl sulphate
Formula
C14H33NO4S
Mol. Weight
311.48
CAS #
52304-21-9
Form
Powder
See origin →
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
Traditional Use
Created in the 20th century as a sulfated derivative of myristic acid for use as a surfactant. Designed to provide cleansing properties without significant traditional use history.
Skin Types
all-skin-types
Best For
General
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
Ammonium Myristyl Sulfate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Furfuryltrimethyl ammonium salts
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Identification of didecyldimethylammonium salts and salicylic acid as antimicrobial compounds in commercial fermented radish kimchi.
Li J, Chaytor JL, Findlay B, McMullen LM, Smith DC et al.
Journal of agricultural and food chemistry, 2015
Identification of didecyldimethylammonium salts and salicylic acid as antimicrobial compounds in commercial fermented radish kimchi.
Li J, Chaytor JL, Findlay B, McMullen LM, Smith DC et al.
Journal of agricultural and food chemistry, 2015
Identification of didecyldimethylammonium salts and salicylic acid as antimicrobial compounds in commercial fermented radish kimchi.
Li J, Chaytor JL, Findlay B, McMullen LM, Smith DC et al.
Journal of agricultural and food chemistry, 2015
Identification of didecyldimethylammonium salts and salicylic acid as antimicrobial compounds in commercial fermented radish kimchi.
Li J, Chaytor JL, Findlay B, McMullen LM, Smith DC et al.
Journal of agricultural and food chemistry, 2015
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR