Preservative

Sodium Sulfite

INCI: SODIUM SULFITE
CAS 7757-83-7 EC 231-821-4
Sodium sulphite
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Purpose

Function

Preservative; antioxidant; reducing agent (in hair dye/perm formulations)
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Sodium sulphite

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

Identifiers

CAS Number
7757-83-7
EC Number
231-821-4
INCI
SODIUM SULFITE
Category
Preservative
Updated
Apr 2, 2026