Cosmetic Ingredient

Aluminum Sulfate

INCI: ALUMINUM SULFATE
CAS 10043-01-3 EC 233-135-0
Aluminium sulphate
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Aluminium sulphate

Purpose

Function

Astringent
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
MODERATE
US
Permitted
Absorptionlow
Sensitizationmoderate
MoSadequate
NOAEL30 mg/kg
ConcernModerate
Flags
endocrine_disruptorfda_food_additivejecfa_concern
Verdict

More irritating than other aluminum salts due to pH concerns. Not suitable for damaged or broken skin; concentration-dependent irritation requires appropriate pH formulation.

US Note

Permitted in cosmetics; also FDA GRAS for food use (water treatment, food additive). Not an approved OTC antiperspirant active.

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
10043-01-3
EC Number
233-135-0
INCI
ALUMINUM SULFATE
Category
Cosmetic Ingredient
Updated
Apr 2, 2026