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, 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: GHK Copper Peptide GHK Cu Tripeptide 1 Injectable GHK Cu: Beginner's Guide to Copper Peptide How to Measure and Inject GHK Cu (Copper Peptide for Skin and Tissue Repair) YouTube GHK Cu Peptide Therapy Brea, CA Orange County