GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum And we're back with our GHK Cu peptide injection pen. Here's how to use it, and where. More coming soon ;) #ghkcu #ghkcucopperpeptide #peptides GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B Peptides and Wellness Medications What is a GHK CU Injection? Benefits and Uses Prime IV