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 Private Label Organic Professional Treatment Hair Loss Copper Peptide Hair Growth Serum10% Ghk Cu Hair Growth Serum Ghk Cu Hair Growth Serum and Copper Peptide Hair Growth Serum price Copper Peptide Hair Growth Serum 10% GHK Cu & 5% AHK Cu Hairgenetix 2pcs) Advanced Copper Peptide Hair Regrowth Formula GHK CU & AHK CU, Copper Peptide Hair Growth Serum for Women and Men on OnBuy