GHK Cu 50mg vs 100mg: Which Concentration Should You Buy? GHK Cu (copper peptide) is one of the most talked about wellness peptidesand for good reason This naturally occurring peptide has been studied for its potential to support skin quality, hair health, and SYNTHAGEN LABORATORIES NL GHK CU TETRAPEPTIDE + CU For Skin Regeneration For Wrinkles and Scars Treatment Peptides for Skin For Hair Pattern and Thickness : Amazon.ie: Beauty GHK Cu Focal Point Vitality 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