Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn Copper Peptide Regenerating Serum for Glowing Skin and Hair Copper Peptide Duo GHK Cu Anti Aging Serum & Moisturizer GHKCu Copper Peptide Therapy Skin & Healing Regeneration 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