Preservative

Potassium Metabisulfite

INCI: POTASSIUM METABISULFITE
CAS 16731-55-8 EC 240-795-3 / -
Dipotassium disulphite
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Purpose

Function

Reducing agent; Antioxidant; Preservative (hair waving/straightening systems)
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Dipotassium disulphite

EU Restricted — Annex III
1 official EU restriction with concentration limits & label requirements
View details →
Reference

Identifiers

CAS Number
16731-55-8
EC Number
240-795-3 / -
INCI
POTASSIUM METABISULFITE
Category
Preservative
Updated
Apr 2, 2026