Everything you need to know about GHK Cu WHAT IS IT? A copper peptide your body naturally produces but production drops by 60% by age 60. It's one of the most GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia Peptide Therapy for Pain Management and Healing Core Medical & Wellness 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