Youve heard of GHK Cu., We didnt stop there., Our formula pairs GHK Cu with its bigger, more targeted brother AHK Cu., GHK Cu helps support follicle health and strand strength., AHK Cu has been How to Apply and Use GHK Cu and AHK Cu Hair Serum for Hair Regrowth Peptide Labz Much ado about nothing: the peptide they say never worked GHK Copper Peptide GHK Cu Tripeptide 1 NOLUVA Copper Peptide Hair Regrowth Serum GHK Cu & AHK Cu 30ml British Harmonia Natural Makeup & Fragrance by British Harmonia UK