Cellular Glow Copper Peptide GHK Cu Serum for Face Two Weeks on GHK CU by Rory Uphold The Ladies Room 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 Ghk Cu Peptide Before And After Pictures Does it work? Maneup GHK Cu hair growth serum : r tressless GHK Cu: The Peptide Everyone Is Injecting (Big Mistake?)