Ammonium Capryleth Sulfate

AKA: Azanium;2-octoxyethyl sulfate, 52286-18-7

Synthetic

Cleanser

Plant Oil

Not Clean

Poly(oxy-1,2-ethanediyl), .alpha.-sulfo-.omega.-(octyloxy)-, ammonium salt (1-4 mol EO average molar ratio)

Formula

C10H25NO5S

Mol. Weight

271.38

CAS #

52286-18-7

Form

Powder

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

Traditional Use

A synthetic sulfate surfactant developed in the 20th century for use as a cleansing agent in shampoos and body washes. Designed for modern cosmetic applications with no traditional or historical precedent.

EWG

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

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed0 reviews

Counts, not a verdict. A listing isn't a study. The trail, you decide.

Verified Jun 2026

Data: PubChem · CosIng · EWG · CIR