Is Sodium Sulfite vegetarian?
Sodium Sulfite
Vegetarian
Vegetarian
Vegan
Vegan
Sodium Sulfite is an inorganic salt with the formula Na2SO3, used as an antioxidant and preservative in cosmetics and food products. It is produced by treating sodium hydroxide or sodium carbonate with sulfur dioxide.
| Also known as | Disodium sulfite, Natrii sulfis, Sodium sulphite, Sulfurous acid disodium salt |
|---|---|
| INCI name | Sodium Sulfite |
| E number | E221 |
| INS number | 221 |
| CAS number | 7757-83-7 |
| EC number | 231-821-4 |
| CosIng ID | 38095 |
| Last reviewed | 22 April 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
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