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 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 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 c Met pathway facilitates the perineural invasion of pancreatic cancer by activating the mTOR NGF axis Cell Death & Disease