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 Dihexa targets neurotrophic factors like BDNF and NGF, which drive brain repair. By activating the c MET receptor, it helps cells take in nutrients and rebuildespecially in cases where recovery is slow or Alzheimer's and Dementia Michigan Dental Association Dementia 101: Know the Different Types of Dementia