Create your own serum! GHK Cu Repairing Serum is stored in revolutionary, two part packaging, consisting of a powder formula in the lid and a liquid solution in the base. I've had @sumanurica in my routine for almost a year now, so adding the new GHK Cu Repairing Serum felt like the perfect next step It's lightweight, calming and layers beautifully, especially Repair & Smooth Duo SumaNurica GHK Cu Repairing Serum 30ml SumaNurica