GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health Absence of evidence isnt evidence of absence its a popular argument, but its not how we should be guiding treatment decisions. In this short, I respond to a comment about GHK Cu injections for GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Injectable Team Wellcore GHK cu hard spots at injection site : r Peptides