Glutathione is a natural antioxidant your body makes, and it can influence melanin production which is why its sometimes marketed for skin brightening., Oral supplements are mostly broken down in Improved efficacy of linear glutathione peptide chaperon complexes on melanogenesis inhibition and transdermal delivery ScienceDirect Does Glutathione Reduce Melanin? Glutone Does Glutathione Lighten Dark Spots? Can Glutathione Darken Skin? Understanding the Myths and Facts Cymbiotika CYMBIOTIKA How Glutathione Fights Acne, Dark Spots, and Skin Damage in Men Setu Nutrition