Sodium Cetyl Sulfate

AKA: Cetyl sulfate sodium salt, Sodium hexadecyl sulfate, 1120-01-0, Sodium n-hexadecyl sulfate, Avitex C, Avitex SF, Sodium hexadecyl sulphate, Sodium hexyldecyl sulfate
Synthetic
Cleanser
Emulsifier
Clean
OriginDerived from fatty alcohols and sulfuric acid or sulfur trioxide, belonging to the alkyl sulfate chemical family. Synthesized through sulfation of cetyl alcohol followed by neutralization with sodium hydroxide or sodium carbonate.
See also: hexadecyl sulfate, (sodium salt) (annotation moved to).
Formula
C16H33NaO4S
Mol. Weight
344.50
CAS #
1120-01-0
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.
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
Creates cleansing foam
Lifts away dirt and oil
Mixes oil and water
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 532)
Eye Irritant in Testing
2 studies / 2 irritating (CIR 532)
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR