l-glutathione vs glutathione for skin whitening Brightening Skin Antioxidant Detox L-Glutathione Glow On Brightening Toner
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[DOI] [PubMed] [Google Scholar] 25.Drager L.F., Togeiro S.M., Polotsky V.Y., Lorenzi-Filho G

Glutathione inhibits the production of melanin (the pigment which gives skin its colour), resulting in brighter looking skin

Taher and Saliba, 2017

Sci Rep 7(1):10718 Yamamoto K, Yoshida H, Kokame K, Kaufman RJ, Mori K (2004) Differential contributions of ATF6 and XBP1 to the activation of endoplasmic reticulum stress-responsive cis-acting elements ERSE UPRE and ERSE-II
