GHK Cu before and after : r Biohackers 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing., Alright, I need to give you an updateit's been 12 weeks since I started using GHK peptides from Transcend, and Has anyone been treated with GHK Cu peptide yet? It's supposed to help regulate your collagen production sounded interesting GHK CU COPPER PEPTIDE 5MG 10MG 50MG 100MG VIAL UMBRELLA Labs GHK Cu Peptide Progress: Week 3 Results