GHK Cu: The Peptide Everyone Is Injecting (Big Mistake?) YouTube 6 month GHK CU check in Main takeaway: skin transformation takes time. GHK CU peptide binds to copper and activates genes involved in wound healing, collagen synthesis, and skin remodeling. On the face, this translates HapiPatch Glow Up GHK Cu Copper Peptide Patches Transdermal Vitamin Patches for Skin Firmness, Fine Lines & Hair Vitality 24 Hour Collagen Support, Made in the UK 15 Patch Pack : 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