Copper, Collagen, and Controversy: Inside the GHK Cu Buzz Injectable vs Topical GHK CU: Which Copper Peptide Form Works Best? Sama Says Revitalize Your Skin: The Benefits of Copper Peptide for Youthful Glow Two Weeks on GHK CU by Rory Uphold The Ladies Room GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or