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 Recent Progress and Advances in HGF MET Targeted Therapeutic Agents for Cancer Treatment Exploring the science behind Dihexa., Preclinical research examines its interaction with the HGF c Met pathway and associated neuroplasticity markers in laboratory and animal models. Human data The Role of HGF c Met Pathway Signaling in Human Medulloblastoma IntechOpen Targeting the HGF MET axis in cancer: therapeutic promise for natural compounds ScienceDirect 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