glutathione treatment before and after Skin Whitening (Antioxidant) Skin Lightening IV Infusion at

Both studies used the ingredient at 0.1% which also matches how much it usually shows up in products (at fractions of a percent)

Yu F, et al

Life is full of factors that tip this scale: UV radiation from the sun, environmental pollutants, poor diet, and chronic stress

10.1111/sji.13371 67 HuY.WangS.WuL.YangK.YangF.YangJ.et al (2023)

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