Dihexa

Dihexa is a synthetic peptide derivative of angiotensin IV that was developed at Washington State University by researchers studying cognitive enhancement. It is perhaps the most potent nootropic compound ever discovered in terms of its ability to promote the formation of new neural connections (synaptogenesis). In laboratory studies, Dihexa was found to be approximately 10 million times more potent than brain-derived neurotrophic factor (BDNF) at promoting neuronal connectivity. It works by binding to hepatocyte growth factor (HGF) and potentiating its interaction with its receptor c-Met, which is critical for neuronal growth, survival, and synapse formation.

In animal models, Dihexa has reversed cognitive deficits associated with Alzheimer's-like pathology and restored learning and memory function in aged rats to levels comparable to young animals. The peptide can cross the blood-brain barrier and is orally bioavailable, making it convenient to administer. However, it remains in the early stages of research, and long-term safety data in humans is extremely limited. Its extraordinary potency warrants cautious use and careful consideration of potential risks.