Dihexa (also known as PNB 0408) is an experimental small molecule derived from angiotensin IV. It was engineered to cross the bloodbrain barrier and has shown synaptogenic effects in preclinical models. The often quoted HGF Signaling Pathway Sino Biological Dihexa c Met HGFR TargetMol Dihexa is an experimental cognitive peptide that may help the brain build stronger connections between neurons instead of just temporarily boosting neurotransmitters like many nootropics do. It works Negative control of the HGF c MET pathway by TGF : a new look at the regulation of stemness in glioblastoma Cell Death & Disease C Met wikidoc