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 (100mg) Your Peptide Brand Dubai In Home GHK Cu Tripeptide Injection Book Private Therapy GHK CU 50 mg LIVV The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline