Potent angiotensin-derived peptide researched for synaptogenesis, memory, and cognitive repair.
Dihexa is a synthetic peptide derived from angiotensin IV, developed by university researchers as a potential treatment for cognitive decline. Its standout property is extreme potency at promoting synaptogenesis — the formation of new connections between neurons.
It appears to work through the hepatocyte growth factor (HGF) / c-Met system, a powerful pathway for tissue and neural growth. In preclinical models it has been reported as dramatically more potent than BDNF at building synapses, which is the source of the excitement around it for memory and learning.
That same potency is the caution: a molecule that strongly drives new tissue and blood-vessel growth raises theoretical concerns (for example, anywhere there is cancer risk), and human data is essentially anecdotal. It is used at small doses, often orally.
Promotes synapse formation tied to memory and cognition.
Striking preclinical potency; human evidence is anecdotal
Studied for cognitive decline and neural repair.
Preclinical research origin; not clinically established
Supports the brain's ability to form new connections.
Mechanistically supported in models
We rate every peptide honestly across four dimensions — and tell you what it's not.
Mostly preclinical (animal/in-vitro) evidence with a clear mechanism. Human effects are largely anecdotal.
Men experimenting with potent cognitive enhancement, aware of the thin human data
Extremely potent — start at the low end. Mostly preclinical/anecdotal. Theoretical growth concerns warrant caution.
Women exploring memory and cognitive support
Limited female-specific and overall human data. Avoid with any cancer history and in pregnancy.
Limited female-specific data.
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Avoid with any history of cancer — strongly promotes new tissue/vessel growth (theoretical concern).
Extremely potent — start at the low end.
Mostly preclinical and anecdotal evidence in humans.
Standardized data for Dihexa is limited. These are the general effects to watch for with this type of compound.
Rotate sites, use sterile technique, let alcohol dry before injecting.
Hydrate and ease the dose; usually transient as your body adjusts.
Individual responses vary. Stop and consult a clinician for severe, persistent, or unexpected reactions.
4 steps with photos, pro tips, and a dosing calculator.
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View Full GuidePepCompass provides educational information only. Nothing on this platform constitutes medical advice, diagnosis, or treatment. All content is for informational and research purposes only. Always consult a licensed healthcare provider before starting any peptide protocol. Individual results vary.