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 Cooper Peptide: The Complete Skin & Repair Guide (2026) GHK Cu Copper Peptide in LA 3,356+ Reviews Time for a little GHK CU update for the people who are interested. Its day 9. I took a little break on day 5 just so my body didnt get too used to the peptides and Ill just keep going in this 5 Copper peptides explained what are the differences between copper peptides and GHK CU peptides? What they actually do for the skin in terms of repair and collagen, and what you can and cant mix Unlocking the Secrets of GHK Cu: The Revolutionary Peptide for Youthfu