GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health Subcutaneous Injection: What It Is and How to Give One Peptides for Plastic Surgery Recovery: A Clinical Guide to GLOW, KLOW, and NAD Plus Frank Agullo, MD GHK Cu (glycyl L histidyl L lysine copper) is a naturally occurring copper peptide in human plasma that declines with age. Known for its reparative and anti aging properties, it stimulates collagen synthesis, reduces inflammation, and improves skin health. 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 GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy