So far GHK-Cu has the best research and it seems to have promise when used topically for cosmetic purposes
Sodeifian, G., Nasri, L., Razmimanesh, F
GHK (glycyl-L-histidyl-L-lysine) is the tripeptide backbone
Many people benefit from glutathione's cellular-protective effects, especially those with chronic inflammation or compromised liver function
Selected Data 1) The study conducted by the research team of Pan et al aimed to develop an efficient and cost-effective small-molecule strategy for generating functional hepatic cells from human pluripotent stem cells (hPSCs)
Conclusion Stopping glutathione can lead to a gradual return of natural skin pigmentation, reduced antioxidant protection, and potential changes in energy levels and immunity