The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Everyone talks about the glow from GHK Cu Nobody talks about the burn. Yes, GHK Cu gets hyped for tighter looking skin, scar support, collagen support, and regeneration. And the reason people talk about it Mechanisms of differential desensitization of metabotropic glutamate receptors: Cell Reports Ghk Cu Copper Peptides! We don't gatekeep! #ghkcu #ghkcucopperpeptide #antiaging #beyouthful Blockade of glucagon receptor induces cell hypersecretion by hyperaminoacidemia in mice Nature Communications Steroids completely reverse albuterol induced 2 adrenergic receptor tolerance in human small airways Journal of Allergy and Clinical Immunology