Insulin Resistance: From Mechanisms to Therapeutic Strategies GHK Cu (Copper Peptide) 50mg 99.80% Purity Research Peptide Miro Biotech Powerock Pharma GHK CU 50mg The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Kinetic Model for the Desensitization of G Protein Coupled Receptor The Journal of Physical Chemistry Letters 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