Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3 Dr. Brenner Labs GHK Cu Peptide Skin Cream Levers.Health PSA] Finally, a Dr. explains the mechanism behind the "copper uglies" : r SkincareAddiction 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 GHK Cu Peptide Therapy Pricing