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Exploring the Safety and Efficacy of Glutathione Supplementation for Skin Lightening: A Narrative Review.

Alzahrani TF, Alotaibi SM, Alzahrani AA, et al. Cureus. 2025.
MixedReviewMentions: Glutathione

Editor's note

A narrative review with glutathione as its central subject across skin-lightening routes. It reports depigmenting activity but flags serious safety concerns with intravenous use, including anaphylaxis and hepatotoxicity, and a lack of standardized dosing. The authors call for large, rigorous trials before routine use.

Plain-language abstract

This review evaluates oral, topical, and intravenous glutathione for skin lightening, finding variable benefit and notable safety concerns with the intravenous route.