Glutathione
Small skin trials. Drips made people sick in 2026.
Grade B: Some human proof
Small, early or mixed results in people.
The grade is for the use people talk about, not for every use. Filed under: Skin and hair.
How it works
An antioxidant your own cells make.
How it was given in studies
By mouth and on the skin, in the small skin trials.
This is what the studies did. It is not a how-to. Source: Review of skin trials. International Journal of Dermatology, 2025.
What studies saw
Pills and creams lowered skin pigment readings in small trials. The one placebo-controlled trial of the drip did not show a clear difference.
The trade-off
In August 2026 the FDA reported at least 30 patients who reacted to drips made from supplement-grade ingredient.
When it showed up, in studies
Trial lengths varied. No clear timeline.
Sources
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Copy the line below. The badge links back to this page, so readers can check the sources. It grades the compound in studies. It does not rate any product or seller.
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Keep going
We show what studies found. We never tell you what to take. Doses vary by study. Check the sources and talk to a doctor.