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 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 and Its Roles in Skin and Hair Transformation GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Two Weeks on GHK CU by Rory Uphold The Ladies Room Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000