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Sodium Myristyl Sulfate
AKA “Tesapon K 14, Texapon K 14, Natri tetradecylsulfas, Myristyl sulfate, sodium salt, Tetradecyl sulfate, Natrii tetradecyclis sulfas, 1-Tetradecanol, 1-(hydrogen sulfate), sodium salt (1:1), Tetradecilsulfato sodico [INN-Spanish], Natrii tetradecyclis sulfas [INN-Latin]”
Surfactant
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Ingredient Facts
Sodium myristyl sulfate
AKA: Tesapon K 14, Texapon K 14, Natri tetradecylsulfas, Sodium salt, Tetradecyl sulfate, Natrii tetradecyclis sulfas, 1-Tetradecanol, 1-(hydrogen sulfate), Sodium salt (1:1), Tetradecilsulfato sodico [INN-Spanish], Natrii tetradecyclis sulfas [INN-Latin]
Surfactant · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Plant Oil
Not Clean
An anionic surface-active agent used for its wetting properties in industry and used in medicine as an irritant and sclerosing agent for hemorrhoids and varicose veins.
Formula
C14H29NaO4S
Mol. Weight
316.43
CAS #
1191-50-0
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.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Cleansing
Surfactant Emulsifying
Moisturizing
Strengthens Barrier
Antimicrobial
Removes dirt and impurities
Lifts away dirt and oil
Mixes oil and water
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
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR