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 Follow for more info on how to optimize your health. Dihexa gets misunderstood because people expect it to feel like stimulation. That's not what it's about. This is about adaptation, not activation. Growth factors and their peptide mimetics for treatment of traumatic brain injury ScienceDirect AngIV Analog Dihexa Rescues Cognitive Impairment and Recovers Memory in the APP PS1 Mouse via the PI3K AKT Signaling Pathway EllieMD Dihexa