Loren Pickart and colleagues isolated a short peptide from human plasma that extended the lifespan of cultured liver cells. They identified its sequenceglycyl-histidyl-lysine (GHK)and discovered that when bound to copper ions, it formed GHK-Cu, a complex with strong biological activity in cell growth and tissue repair
By reducing melanin production, regular, high-dose glutathione therapy can lead to a reduction in dark spots and a brighter, more even overall skin tone
Br J Pharmacol 119:16141618 [DOI] [PMC free article] [PubMed] [Google Scholar] Connor M, Borgland SL, Christie MJ
& Ortega, E
According to a recent study (2018), GHK-Cu (the first generation of copper peptides) "has multiple biological actions, all of which appear to be health positive
Through a process called S-glutathionylation, glutathione also regulates major DNA repair proteins, such as the Ku70/Ku80 heterodimer used in Non-Homologous End Joining (NHEJ) to repair double-strand breaks