Ive had @sumanurica in my routine for almost a year now, so adding the new GHK Cu Repairing Serum felt like the perfect next step , Its lightweight, calming and layers beautifully, especially on GHK Cu Copper Peptide Supplement, Promotes Skin Repair, Reduces Wrinkles CTDE PARIVAR SumaNurica Repair & Smooth Duo Kit MYER One of the questions we often receive about our products is: Why is the GHK Cu Repairing Serum stored in two part packaging? GHK Cu is an unstable ingredient that can slowly lose its effectiveness GHK Cu Dosage Calculator Draw Volume In ML & U 100 Units Ghk cu 50mg 100mg Lyophilized Powder Peptide For Injection Dosage Form: Liquid at Best Price in Shenzhen Sino Kingtop Pharm Co.,ltd.