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 (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 UK The UK's Leading Dihexa Peptide Resource Dihexa.co.uk Dihexa Supplier CAS 1401708 83 5 AOBIOUS DIHEXA PEPTIDE 10MG VIAL UMBRELLA Labs Dihexa RADSUBSTANCE