GHK Cu Peptide Therapy for Radiant Skin by Desert Mobile GHK Cu Peptide Benefits for Skin and Hair LIVV Natural Oral Liposomal Copper GHK Liposomal GHK Cu Supplement GHK Cu is a naturally occurring tripeptide in human plasma. Levels average 200 ng ml at age 20 and drop to 80 ng ml by age 60 (Pickart et al., 2020). That decline tracks with The potential of GHK as an anti aging peptide Dou Aging Pathobiology and Therapeutics