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The Skin Formulary
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1 ingredient

Antioxidant, Preservative

Explore all 1 ingredient in the Antioxidant, Preservative category. Learn about their benefits and find products that contain them.

Antioxidant, Preservative

Sodium Metabisulfite

Sodium Metabisulfite (also known as disodium disulphite) is an inorganic compound used in cosmetics as an antioxidant, preservative, and reducing agent. It prevents oxidative degradation of formulation ingredients, extending product shelf life and maintaining efficacy of oxidation-sensitive actives such as vitamin C. It is subject to EU CosIng restrictions (Annex III/99 and Annex V/9) regarding maximum permitted concentrations.

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