What it means
Topical glutathione is studied mainly in lab work and small trials, and some products market it for skin brightening. Oral glutathione has been studied for skin tone, but the results are mixed and most trials are small.
Glutathione breaks down readily in formulas, so the amount still active in a product can vary.
Also known as
- L-glutathione
- GSH
- skin glutathione
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Sources
General information, not medical advice. Talk to a clinician about any decision about your health.