Cosmetic Ingredient

Toluene Sulfonic Acid

INCI: TOLUENE SULFONIC ACID
CAS 104-15-4 (p-toluenesulfonic acid) EC 203-180-0
Toluene-4-sulphonic acid
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

pH adjuster, catalyst, solubilizer in formulations
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Toluene-4-sulphonic acid

Reference

Identifiers

CAS Number
104-15-4 (p-toluenesulfonic acid)
EC Number
203-180-0
INCI
TOLUENE SULFONIC ACID
Category
Cosmetic Ingredient
Updated
Apr 2, 2026