Growth factors and their peptide mimetics for treatment of traumatic brain injury 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 through the HGF c Met pathway, Recent advances in the discovery of small molecule c Met Kinase inhibitors ScienceDirect 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