glutathione lighten skin What Is Glutathione's Role in Lightening? Glutathione Skin Lightening: Benefits and

Evidence: A study in HIV-positive patients found that whey protein supplementation (45 g/day for 2 weeks) significantly increased plasma glutathione levels (Micke et al., Eur J Clin Invest, 2001) [22]

Kantlehner M, Schaffner P, Finsinger D, Meyer J, Jonczyk A, Diefenbach B, et al

In fact, replenishing glutathione levels may improve cell function in diseases like ulcerative colitis and prevent further cell damage by protecting against the harmful effects of oxidative stress

Recognizing these convergences clarifies why injury-repair peptides are under investigation for hair biology and reinforces the need for controlled designs that account for systemic variables (diet, sleep, stress hormones) when attributing follicular outcomes to any single molecular intervention