Glutathione oxidizes it to dehydroascorbic acid, which is then reduced back to ascorbic acid
Chu F-F, de Silva HR, Esworthy RS, Boteva KK, Walters CE, Roses A et al (1996) Polymorphism and chromosomal localization of the GI-form of human glutathione peroxidase (GPX2) on 14q24
This activation leads to the proteolytic breakdown of DNA repair proteins, cytoskeletal proteins, and caspase-activated DNase inhibitors, ultimately culminating in morphological changes and DNA damage characteristic of apoptosis
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Clin Exp Pharmacol Physiol
Copper peptides work with your skin's own biology - and biology takes time