GHK Cu 50mg Dosage Protocol PeptideDosages.com GHK Cu Copper Peptide Regeneration, Skin Renewal & Anti Age Peptide Therapy for Hair Growth: Explore Your Options After a year of using GHK Cu both topically and going deeper than topicals (under my doctor's care), the difference in my skin is not something I have to squint at in good I've been getting a lot of questions about GHK Cu, so here's a quick breakdown. GHK Cu is a copper peptide that naturally occurs in the body and plays a role in skin repair What is the safe topical dosing, duration, and contraindications for the copperbinding peptide GHKCu for wound healing or antiaging?