Dihexa: A Comprehensive Guide to This Promising Peptide 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, 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 Fix the Hardware First: A Paradigm Shift in Acute and Chronic Traumatic Brain Injury Management HyperCharge Health DIHEXA Beverly Hills Rejuvenation Center