Antioxidant · Brightening
Glutathione
A tripeptide antioxidant naturally produced in every cell, used topically to support radiance alongside Vitamin C and Niacinamide.
Definition
What is it?
Glutathione is a tripeptide made from glutamine, glycine and cysteine. The body produces it naturally as part of its antioxidant system. In cosmetics it is used in serums and creams for antioxidant support and a more even-looking complexion.
How it works
How does it work?
Glutathione neutralizes free radicals and helps restore other antioxidants to their active form. In brightening formulas it is used to support a more even-looking tone, often alongside Vitamin C, Niacinamide or fermented ingredients. Its topical effect depends on stability and the delivery system used in the formula.
Benefits
What does Glutathione actually do for the skin?
- 01Adds antioxidant support alongside Vitamin C and Niacinamide in a brightening routine
- 02Contributes to a more even, less dull-looking complexion as part of a multi-active routine
- 03Supports the skin's resilience against oxidative stress from UV exposure and pollution
- 04Often combined with Galactomyces Ferment Filtrate in Korean ampoules for complementary radiance and brightening support
Who is it for?
Is it right for your skin?
For dull skin, skin exposed to environmental stress or uneven tone that needs an additional antioxidant in the routine.
Notes and myths
What should you know before using it?
Glutathione oxidizes easily, so packaging, storage and formula stability matter greatly. Consider it part of an antioxidant system rather than a standalone ingredient for changing skin tone.
Frequently asked questions
Frequently asked questions about Glutathione
What effect does topical glutathione have on skin tone?+
Supports a brighter, more even-looking complexion as part of an antioxidant formula. Results depend on product stability, consistent use and pairing with SPF.
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Products with Glutathione
Ready to add Glutathione to your routine?
Browse our full catalog of Korean skincare products, or read the K-beauty guide for the correct order of use.