How Often to Inject GHK Cu PeptidesExplorer 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 Progress: Week 3 Results So, what are we talking about? GHK Cu , Its completely changed how I think about skin and aesthetics., Instead of freezing muscles or adding volume, this approach supports the skin at a deeper