Copper Peptides: GHK Cu is your skin's built in botox Fatskn The ladies are raving about GHK but let's see if it actually makes a difference #lowtox #health #GHK #migraine #women Peptides Blue Willow Medical Aesthetics A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend Ever heard of GHK Cu peptide? It's a naturally occurring copper peptide that helps repair tissue, stimulate collagen, and support skin healing. When used in injectable form, it works at a deeper level