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 GHK Cu Copper Peptide Neck & Face Serum GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Buy GHK Cu Peptide 99%+ Purity GHK Cu for Research