How to Measure and Inject GHK Cu (Copper Peptide for Skin and Tissue Repair) YouTube 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 Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Copper Peptide Body Lotion Anti Aging Skin Tightening Anti Wrinkle 10 fl oz