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, Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3 Dr. Brenner Labs Ghk Cu Peptide Administration Guide 7% GHK Cu Accelerant for Cosmetics The Original Copper Peptide for Anti Aging DIY Ingredient to Boost Anti Wrinkle Skin Care Buy or Shop Skin Biology True Copper Peptides Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health