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 Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Peptide GHK CU Cream Concierge MD Peptide Therapy for Pain Management and Healing Core Medical & Wellness