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 you're The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Experiencing itching & burning from your GHK CU peptide injections? Try these to hacks: 1. Use a longer syringe to penetrate deeper into the fat cells. 2. Dilute the copper. Here I Peptide Injection Treatments Benefits & Uses Hubmed I had an unexpected allergic reaction to beauty peptides GHK Cu, BPC 157 & TB 500 theyre popular for skin & hair, but I got a rash hours after injection , #PeptideReaction #GHKCU #BPC157 #TB500 GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic