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 Copper Peptides Elmhurst IL Chicago Accelerated Aesthetics GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Focal Point Vitality Peptide Injection Site Reactions: What's Normal, What's Not, and What Revolution Health & Wellness