does nac convert to glutathione biosynthetic scheme. N-acetyl-L-cysteine (NAC) can supply Glutathione NAC for Hair, Skin
Description
The relatively small molecular weight of Pure Copper peptide allows for efficient transdermal penetration, distinguishing it from larger peptide molecules that often struggle to cross the skin barrier effectively

doi: 10.3233/JAD-142223
On the antioxidant side, Vitamin C and glutathione have a "recycling" relationship

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Strengthens Immunity: Immune system support injections like Glutathione help detoxify the body and fight free radicals
Life Sciences, 83(5-6), 170-175