Snapshot
- Overview
- An antioxidant form of glutathione used in brightening products.
- Category
- Antioxidant, Brightening
- Type
- Antioxidant
Oxidized Glutathione
Oxidized glutathione (GSSG) is the disulfide form of the tripeptide glutathione, in its oxidized redox state. It's used to support antioxidant capacity and turns up in brightening lines, though evidence for clear topical effects is limited.
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Our take
Is Oxidized Glutathione a Good Ingredient?
Rated Fair: it has theoretical antioxidant support, but clinical data for visible brightening from topical use remains limited, and mild irritation is possible for very sensitive users, which together keep it from a Good rating.
What it does
Skin Benefits
Helps defend skin against surface oxidative stress and may promote a more even-looking complexion. Evidence for visible brightening from topical use is limited.
Where you'll find it
Uses in Skincare & Cosmetics
Appears in serums, essences, and sheet masks aimed at dullness or environmental exposure. Commonly paired with antioxidants like vitamin C in lightweight water-based formulas.
Before you use it
Safety
Typically low irritation, though peptides can occasionally trigger stinging or redness in reactive skin. Limited human data on long-term topical use, so introduce gradually if sensitive.
Products with Oxidized Glutathione
