GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B GHK Cu Injection Pen Australia Subcutaneous Copper Peptide Inject+ GHK Cu Peptide The benefits, side effects, and more [2026] 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