Sodium Metabisulfite
INCI · Sodium Metabisulfite
Overview
An antioxidant and reducing agent used to protect a formula rather than skin. It scavenges oxygen inside the bottle and is one of the usual companions to easily oxidised ingredients such as pure ascorbic acid or a self-tanning agent.
Who it's for
Formulas that would otherwise brown or lose strength in the bottle — vitamin C serums, some hair products and self-tanners.
Cautions
Sulphites are a recognised trigger for people with a sulphite sensitivity, which is better documented as a food and inhalation issue than a topical one; a known sensitivity is still a reason to read labels. It is a stabiliser and makes no claim of doing anything for skin.
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What does Sodium Metabisulfite do in skincare?
An antioxidant and reducing agent used to protect a formula rather than skin. It scavenges oxygen inside the bottle and is one of the usual companions to easily oxidised ingredients such as pure ascorbic acid or a self-tanning agent.
Is Sodium Metabisulfite considered safe for skin?
Sulphites are a recognised trigger for people with a sulphite sensitivity, which is better documented as a food and inhalation issue than a topical one; a known sensitivity is still a reason to read labels. It is a stabiliser and makes no claim of doing anything for skin.