What is GHK Cu and Why is Everyone Talking About It? GHK Cu (Copper Peptide) is a powerful, naturally occurring compound in the body that plays a key role in skin health GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms This peptide reverses aging, And its been hiding in plain sight for decades., GHK Cu (Copper Peptide) is one of the most researched anti aging ingredients out there., Heres what it does:,