Sodium Metabisulfite
A cosmetic ingredient used as antioxidant, preservative, reducing in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Disodium disulphite
What does it do?
Sodium Metabisulfite is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Antioxidant
neutralises free radicals to slow oxidative damage to the formulation or skin
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Preservative
prevents microbial growth in cosmetic products, extending shelf life and protecting users
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Reducing
a reducing agent — donates electrons to break chemical bonds, used in perms and depilatories
EU regulatory status
This ingredient is restricted in the European Union.
Sodium Metabisulfite is listed under Annex III of EU Cosmetics Regulation 1223/2009 (entry 99V). It is permitted only under specific conditions, concentration limits, or in particular product types.
Notes: /9
Frequently asked questions
What is Sodium Metabisulfite?
Sodium Metabisulfite is a cosmetic ingredient catalogued in the EU CosIng database. Disodium disulphite
Is Sodium Metabisulfite allowed in cosmetics in the EU?
Only with restrictions. Sodium Metabisulfite is permitted in EU cosmetics only under specific conditions defined in Annex III of Regulation 1223/2009.
What does Sodium Metabisulfite do in cosmetic products?
Sodium Metabisulfite is declared in the EU cosmetic ingredient inventory with these functions: antioxidant, preservative, reducing.
What is the CAS number of Sodium Metabisulfite?
The CAS (Chemical Abstracts Service) number for Sodium Metabisulfite is 7681-57-4 / 7757-74-6.
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Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 11/08/2020