GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? How Often to Inject GHK Cu PeptidesExplorer Glow from within with GHK Cu Copper Peptide This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support fuller, healthier looking hair from the GHK CU aka the beauty peptide. I've got the reconstitute and dose chart at the end for reference. Where I purchase mine from Elite Peptides Australia Discount code WISHY10 (because who doesn't love