glutathione used for discoloration 7 Dark Spot Serum Brightening from Within: How Glutathione
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[DOI] [PubMed] [Google Scholar] Puig O., Caspary F., Rigaut G., Rutz B., Bouveret E., Bragado-Nilsson E

Those with chronic conditions or weakened immunity may also benefit from its antioxidant and anti-inflammatory effects

In 2017, we reported that in certain Asian countries, women were getting glutathione injections (and probably still are) to alter their skin to a lighter, more desirable tone (though it's advised against because of limited safety data)

A study has discovered that L-theanine can increase the activity of antioxidant enzymes and effectively mitigate oxidative stress [143]
