Dihexa is an experimental research peptide developed from angiotensin IV analogs, studied mainly for its unusual mechanism: rather than boosting neurotransmitters like typical nootropics, it’s researched for helping the brain physically form new synaptic connections via the HGF/c-Met signaling pathway. Focal Point Vitality

Reported/studied benefits (all preclinical/animal-stage):

• Memory & learning — potential benefits include memory enhancement and learning support through increased synaptic density Swolverine
• Neuroprotection — explored for Alzheimer’s disease, dementia, Parkinson’s disease, and traumatic brain injury Swolverine
• Recovery from injury — investigated for recovery from injury given its neurotrophic activity Swolverine
• Oral bioavailability — unlike most peptides, it survives digestion and is orally bioavailable, and it’s small/lipophilic enough to cross the blood-brain barrier PeptideDeck
• Sustained effects — some sources claim sustained cognitive benefits even after treatment cessation, suggesting structural rather than temporary enhancement — though this claim is less rigorously sourced than the mechanism research Bhrcenter