While GHK alone has some biological activity, it is the GHK-Cu form that is responsible for the vast majority of the regenerative, anti-inflammatory, and gene-modulating effects discussed in clinical research
References: Baar MP, Brandt RMC, Putavet DA, Klein JDD, Derks KWJ, Bourgeois BRM, Stryeck S, Rijksen Y, van Willigenburg H, Feijtel DA, van der Pluijm I, Essers J, van Cappellen WA, van IJcken WF, Houtsmuller AB, Pothof J, de Bruin RWF, Madl T, Hoeijmakers JHJ, Campisi J, de Keizer PLJ
Clin Ther 2005;27:150012.ArticlePubMed 97
Current batch 5816 tested at 99.56% purity by independent HPLC analysis at Testides Analytical, exceeding our 99%+ minimum threshold
Hogland, H