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Dihexa Synaptic Protocol

Published August 27, 2026 1 min read 100 mg Nootropic

Overview

Dihexa (N-hexanoic-Tyr-Ile-(6) aminohexanoic amide) is an angiotensin IV analogue developed at Washington State University. It activates the HGF/MET receptor system, which regulates synaptogenesis and dendritic arborisation. It crosses the blood-brain barrier orally and has an exceptionally long duration of effect (days to weeks).

Dosing & Reconstitution Guide

Once daily u00b7 30u201360 mg (oral) u00b7 Half-life: Long (~weeks)

Reconstitution Table (N/A (oral) mL BAC water u2192 100 mg)

Route Dose Frequency
Oral (capsule) 30u201360 mg Once daily
Transdermal (cream) 1u20135 mg Once daily

For oral use: dissolve powder in a capsule filler. Given the extremely long duration of action, extended daily use is not recommended u2014 use in cycles. Start with the lowest effective dose.

Dihexa has very limited human safety data. Its extraordinarily long duration means effects accumulate. Use cautiously. Research use only.

Potential Benefits & Side Effects

Potential Benefits

  • Synaptogenesis and dendritic spine density
  • Cognitive improvement in impaired states
  • Long-lasting effect from single doses
  • Oral bioavailability

Possible Side Effects

  • Limited human data
  • Potential overstimulation
  • Anxiety at high doses (reported in users)

Storage Instructions

Lyophilized Powder

  • Short-term (<3 months): Refrigerate at 2u00b0Cu20138u00b0C
  • Long-term: Freeze at u221220u00b0C or lower
  • Protect from light and moisture
  • Allow vial to reach room temperature before opening

Reconstituted Solution

Dissolve in carrier and store at 2u20138u00b0C. Use within 14 days of dissolving.

References

McCoy AT et al. (2013)

Evaluation of cognitive enhancing effects of Dihexa

View Source

Important Note

This protocol guide is for educational and research purposes only. It is not medical advice. Always consult a qualified healthcare professional before using any peptide compound.