Radiance Restore (Epithalon + GHK Cu) Pure Hydration IV Spa in Jacksonville GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic 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 injectable peptides are powerful tools for skin regeneration, recovery, and longevitybut local redness and irritation are common. Understanding why GHK Cu causes injection site reactions helps you use it more comfortably while maintaining