GHK Cu 100mg Peplogix GHK CU for Sale Tripeptide 1 3rd Party Tested US Made Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with Most people think they need to take copper peptides. But Your body already produces its own copper peptide called GHK Cu. But levels naturally decline with age. So Instead of trying to replace Your body already knows this peptide it just makes less of it over time. GHK Cu is a naturally occurring copper peptide that supports tissue repair, improves skin quality, and helps reduce inflammation