Sodium Metabisulfite

A preservative that is especially effective at preventing fungus and mold growth. It is normally combined with a strong bactericidal preservative in order to achieve broad-spectrum protection. Sodium metabisulfite is also used as an antioxidant.
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Sodium Metabisulfite

Overview

Sodium metabisulfite is a multifunctional, chemically inorganic ingredient that is supplied as a white powder.

This ingredient can serve as a preservative, as it is especially effective at preventing fungus and mold growth. Because of its limited preserving ability, it is normally combined with a strong bactericidal preservative to achieve broad spectrum protection.

Sodium metabisulfite is also an antioxidant, which means it protects sensitive ingredients from degradation as a result of free radicals created by ultraviolet light. Additionally, this ingredient is useful as a reducing agent, which is commonly seen in permanent hair processes.