Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn GHKCu Copper Peptide Therapy Skin & Healing Regeneration Copper Peptide Regenerating Serum for Glowing Skin and Hair Pptido de cobre GHK GHK Cu Tripptido 1 Copper Peptide Duo GHK Cu Anti Aging Serum & Moisturizer 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