Therapeutic Peptides in Orthopaedics: : JAAOS: Global Research and Reviews 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 Adult Hippocampal Neurogenesis in the Human Brain: Updates, Challenges, and Perspectives Sophie Simard, Natalie Matosin, Naguib Mechawar, 2025 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