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Journal of Investigative Dermatology, 1999 PubMed The tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+ stimulates matrix metalloproteinase-2 expression by fibroblast cultures Simon A, Emonard H, Hornebeck W, Maquart FX Life Sciences, 2000 PubMed Expression of glycosaminoglycans and small proteoglycans in wounds: modulation by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+ Simon A, Wegrowski Y, Bontemps Y, Maquart FX Journal of Investigative Dermatology, 2000 PubMed These papers establish GHK-Cu's documented effect on matrix metalloproteinase activity and extracellular matrix components in wound-healing models

Athletes and fitness enthusiasts may also benefit from Glutathione as it helps reduce muscle damage and fatigue caused by Best way to increase Glutathione levels naturally There are several ways to increase Glutathione levels naturally: Diet: Consuming a diet rich in fruits and vegetables, meat, poultry, fish, seafood, dairy, nuts, seeds, and legumes can help increase Glutathione levels
Ramirez-Martinez A, Wesolek N, Yadan JC, Moutet M, Roudot A (2016) Intake assessment of L-ergothioneine in some European countries and in the United States
Shelf life at a glance The 28-day window for an opened multi-dose vial reflects standard multi-dose vial guidance