The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, IV Vitamin Therapy Charleston, SC Well Labs+ Medspa Charleston GHK CU aka the beauty peptide. I've got the reconstitute and dose chart at the end for reference. Where I purchase mine from Elite Peptides Australia Discount code WISHY10 (because who doesn't love WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents Peptide Injection Site Reactions: What's Normal, What's Not, and What Revolution Health & Wellness