GHK Cu: The Peptide That Supports Healthy Aging GHK Cu (copper peptide) is naturally occurring in the body and plays a role in supporting skin health, collagen production, and tissue repair. As 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 Are GHK Cu Injections Safe Enough? Alternatives Options Neurogan Health Can You Mix Retatrutide With GHK Cu? Risks and UK Guidance Bolt Pharmacy GHK Cu Troche Strive Pharmacy