Dihexa R&D PEPTIDE.ONE Dihexa Peptide Therapy Memory & Cognition Beverly Hills 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 Inflammation may trigger autism, but healing requires both calming the immune system and rebuilding strength. Peptides that enhance brain derived and nerve growth factors can help accelerate neurological recovery and improve outcomes in Activity dependent neuronal signalling and autism spectrum disorder Nature Novel treatments for autism spectrum disorder based on genomics and systems biology ScienceDirect