Injectable GHK Cu: Beginner's Guide to Copper Peptide 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 Copper Peptide Regenerating Serum for Glowing Skin and Hair GHK Cu Research Peptide High Purity Canada XPeptides XPEPTIDES Copper Peptide Duo GHK Cu Anti Aging Serum & Moisturizer The GHK Cu Peptide: Benefits, Uses, and Why it's Known as the Regenerative Copper Complex