GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 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