GHK Cu: The Peptide for Regeneration This powerful copper peptide supports collagen production, accelerates wound healing, and promotes healthier, more youthful skin. Whether you're recovering from injury, managing inflammation, or just GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with GHK Cu Injectable Team Wellcore