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 show you how to The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Subcutaneous Injection: What It Is and How to Give One GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B