Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Transform Your Skin: GHK Cu & Red Light Therapy Update TikTok GHK cu Face Serum Super Peptide Serum Anti Aging Facial Oil with Copper Tripeptides for Plumping and Firming with Witch Hazel GHK Cu Peptide in Austin Saving Face 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 Copper Peptides Serum for Face 2% GHK CU & 4% EGF