Dihexa MedChem Express Surprise: HDAC Goes Down, Not Up, in Alzheimer's Disease ALZFORUM The history of Alzheimers Disease Could a tiny peptide actually help your brain form new connections? Meet Dihexa now available OTC in NEUROgevity. Originally designed for Alzheimer's, it promotes neuroplasticity, supports mental energy, clarity, cognitive Alzheimer's disease Nature 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