GHK Cu Copper Peptide Regeneration, Skin Renewal & Anti Age GHK Cu (Copper Peptide) AzulBotanicals GHK Cu Topical Gel Transparent Peptides 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 Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum