Surfactants

Ammonium Laureth Sulfate

Also known as ALES
INCI: AMMONIUM LAURETH SULFATE
CAS 32612-48-9
Dodecan-1-ol, ethoxylated, sulfates, ammonium salts, 1-4 mol EO (average molar ratio)
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Dodecan-1-ol, ethoxylated, sulfates, ammonium salts, 1-4 mol EO (average molar ratio)

Purpose

Function

Surfactant, Cleansing, Foaming, Emulsifying
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
MODERATE
US
Permitted
Absorptionlow
Sensitizationmoderate
MoSadequate
ConcernModerate
Flags
surfactantanionicpeg-containing1-4-dioxane-watchirritation-watch
Verdict

Ammonium Laureth Sulfate is an effective, widely used anionic surfactant considered safe by CIR, but formulators should verify 1,4-dioxane levels are minimized and keep concentrations in check to reduce irritation risk.

US Note

CIR-assessed safe; used at concentrations up to 20-35%; eye and skin irritation increase with concentration

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
32612-48-9
INCI
AMMONIUM LAURETH SULFATE
Category
Surfactants
Updated
Apr 2, 2026