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, Activated HGF c Met Axis in Head and Neck Cancer Frontiers HGF and MET: From Brain Development to Neurological Disorders Therapeutic targeting of HGF c Met pathway. c Met pathway inhibition Download Scientific Diagram Targeting HGF c MET signaling to regulate the tumor microenvironment: Implications for counteracting tumor immune evasion Cell Communication and Signaling Springer Nature Link