Ammonium Laureth Sulfate

AKA: (2-(dodecyloxy)ethoxy)sulfonic acid amine, 32612-48-9, PEG-(1-4) Lauryl ether sulfate, Ammonium salt, PEG-12 Lauryl ether sulfate, PEG-5 Lauryl ether sulfate
Synthetic
Cleanser
Clean
OriginDerived from coconut or palm kernel oils, which are converted to lauryl alcohol through hydrogenation and reduction. Produced by ethoxylation of lauryl alcohol followed by sulfation and neutralization with ammonia.
Dodecan-1-ol, ethoxylated, sulfates, ammonium salts, 1-4 mol EO (average molar ratio)
Formula
C14H33NO5S
Mol. Weight
327.48
CAS #
32612-48-9, 67762-19-0
Form
Powder
State
Light yellow viscous liquid; [MSDSonline]
Skin Types
●all-skin-types, gentle
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-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 218)
Eye Irritant in Testing
1 study / 1 irritating / reactions mild to severe (CIR 218)
Mixed Skin Irritation Results
7 studies / 6 irritating / 1 mixed / reactions slight to severe (CIR 218)
Mixed Phototoxicity Results
Both phototoxic and non-phototoxic results in the CIR safety assessment (CIR 218)
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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