GHK Cu Copper Peptide: The Ultimate Peptide For Longevity Anti Aging Benefits of GHK Cu How Copper Peptides Rejuvenate Skin DioLaz Canada GHK Cu, the copper peptide, is a game changing injectable for radiant skin and so much more, , , Heres what it can do:, Boost collagen for smoother, firmer skin, Anti aging improves fine 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