Potassium metabisulfite
Potassium metabisulfite is a sulphite used as a preservative and antioxidant in foods (E224) and in some hair products.
- Used in
- Cosmetic ingredient (INCI)
- CosIng functions
- hair waving or straightening, preservative, reducing
CosIng description: Dipotassium disulphite
Contains / relevant to
- Sulfites: Relevant to people avoiding sulfites. Sulfur dioxide and sulfite preservatives (E220–E228).
What to look for on labels
- Cosmetic ingredient lists use INCI names, in descending order of concentration down to 1 %; ingredients below 1 % can follow in any order.
Related
- Sulphur dioxide and sulphitesSulphur dioxide and sulphites (E220 to E228) are preservatives used in dried fruit, wine and some juices and…
- WineWine is a fermented grape drink that contains alcohol and often sulphites.
- The 14 EU allergens: full list with examplesGuide
- How to read cosmetic INCI lists for sensitive skinGuide
Sources
- European Commission CosIng cosmetic ingredient database
- IngrediLens ingredient database (names, flags and notes shown on this page)
Label information, not medical advice. This page describes how an ingredient is named and labelled and how IngrediLens flags it; it cannot tell you whether a product is safe for you. Always read the label on the product itself and follow the advice of your doctor, allergist or dermatologist. If someone shows signs of anaphylaxis, use their adrenaline auto-injector if they have one and call emergency services.
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