GHK Cu Revival Clinic GHK CU Copper Peptide, Face Cream, 2 oz (60 ml) Just started GHK Cu? Here's what to expect This isn't an overnight peptide, it builds Weeks 12: You may start noticing small shiftsskin feels a bit smoother, nails a little stronger Weeks 34: Home Peptide Calculator: Dose, Units, mL & Reconstitution Guide Florida Surgery & Weight Loss Center 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,