InfiniWell, GHK CU, 30 ml Everyone talks about GHK Cu but nobody talks about how it actually works best. Buying each ingredient separately? Thats easily $90$200+. But youre gettng this topical formila for an insane $30. Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin GHK Cu Peptide Before and After Results