Same GHK Cu. Better way. Same GHK Cu copper peptide complex. Completely different experience. If you've been eyeing the pen, put it down. We made something better, and your skin barrier will thank you A year ago I started working with a copper peptide called GHK Cu. Topically every night. And under my doctor's care, I went deeper than topicals with a low dose. The difference in GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? Glow Peptide Protocol Novel Peptide Skin Care Exploring Peptides GHK Cu LVLUP Health