Ghk cu before and after 3 weeks : r BodyHackGuide GHK Cu (50mg) Alpha BioMed Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Jumbo Size 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 Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000