Copper Peptide (Copper Tripeptide 1 GHK Cu) & Hair Growth All You Need To Know Bearded Chokra Buy GHK Cu Peptide High Purity Copper Tripeptide Pretty 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 1% GHK CU Copper Tripeptide Serum W Hyaluronic Acid Niacinamide Gluconolactone 1 Oz Etsy