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, WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? Peptide Therapy for Pain Management and Healing Core Medical & Wellness What is the safe topical dosing, duration, and contraindications for the copperbinding peptide GHKCu for wound healing or antiaging? GHK Cu Peptide The benefits, side effects, and more [2026]