GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B People Are 'Snorting' Peptides for Younger Skin & It's Not a Scam Here's Why The form of GHK Cu you use may matter more than the peptide itself. Which form of GHK Cu have you personally tried before and what was the FIRST noticeable change you experienced? GHK Cu Peptide Before and After Results GHK Copper Peptide GHK Cu Tripeptide 1