Sodium Tridecyl Sulfate
molecular structure · PubChem
AKA: Tridecyl sodium sulfate, Sodium tridecyl sulphate, 1-Tridecanol, Hydrogen sulfate, Sodium salt, RHODAPON TDS, HSDB 5912
Synthetic
Cleanser
Emulsifier
Not Clean
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Formula
C13H27NaO4S
Mol. Weight
302.41
CAS #
3026-63-9
Form
Powder
State
White powder; [MSDSonline]
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Cleansing
Surfactant Emulsifying
Anti-Inflammatory
Antimicrobial
Fights Acne
Removes dirt and impurities
Creates cleansing foam
Lifts away dirt and oil
Mixes oil and water
Traditional Use
A synthetic anionic surfactant developed in the 20th century for detergent and cleansing formulations. It was designed to provide improved cleansing performance compared to traditional natural soap.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR