The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Mechanisms of differential desensitization of metabotropic glutamate receptors: Cell Reports 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 The Role of G Protein Coupled Receptors (GPCRs) and Calcium Signaling in Schizophrenia. Focus on GPCRs Activated by Neurotransmitters and Chemokines Succinic acid enhances sedative activity of diazepam through GABAergic receptor modulation: Evidence from behavioral approach and computational insights Naunyn Schmiedeberg's Archives of Pharmacology Springer Nature Link