One of my favorite peptides is GHK Cu. It has made such a dramatic impact on my skin in just one cycle I've been shocked! It supports collagen, healing, and overall skin Copper Peptides Elmhurst IL Chicago Accelerated Aesthetics The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget GHK Cu Copper Peptide: The Ultimate Peptide For Longevity Copper Peptide GHK Cu Copper Peptide GHK Cu Peptide: Turn Back the Clock Naturally Calibrate Hydration