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Preformulation and formulation of newly synthesized QNT3-18 for development of a skin whitening agent

N-acetyl-cysteine maintains cell health, is also very beneficial for cell metabolism, and supports cells from damage caused by toxins

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The authors concluded that glutathione, with or without vitamin C and NAC, was well tolerated but did not produce measurable therapeutic benefit in this cohort (Williams et al., 2025)