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 Scientists engineered a peptide up to 1,000,000 more potent than BDNF It's called Dihexa, and it's not about stimulation it's about rebuilding the brain What makes it different: Dihexa Peptide for Memory and Brain Longevity Dihexa Capsules 5mg Peplogix