glutamate to glutathione Laboratory evolution of biosynthesis reveals natural compensatory pathways γ-Glutamyl Cycle

Concurrent with reductions in expression of GPx-1 (and other selenoproteins), these mice show enhanced susceptibility to precancerous changes in a model of prostate cancer and to preneoplastic alterations indicative of colon cancer susceptibility in another model system (98, 182)

10.1152/physrev.00019.2008 64 KasaiH.FukudaM.WatanabeS.Hayashi-TakagiA.NoguchiJ

- Glutathione injection cannot 'change the color' of the skin but only can 'brighten' the skin a bit with the several sessions and also with the lifetime maintenance

Yes injectable forms should be kept refrigerated to maintain potency

GHK-Cu is also safe during pregnancy (unlike Minoxidil and Finasteride), making it particularly valuable for women who experience post-partum hair loss