GHK Cu Face Serum 1200MG Lab Tested & High Potency Neurogan Health GHK Cu Copper Peptide Cream Product Catalog When using peptides, the Sub Q tissue is the correct space for injection. Here is a simple guide on how to find this space. Remember to use sterile technique, please call or Dubai In Home GHK Cu Tripeptide Injection Book Private Therapy The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline 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