GHK Copper Peptide GHK Cu Tripeptide 1 Copper Peptides GHK Cu Fluid 15ml If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection PDF] Nexus between mitochondrial function, iron, copper and glutathione in Parkinson's disease Semantic Scholar Frontiers Glutathione and neurodegenerative diseases: immunopharmacological implications