Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Dihexa | Humanin | |
|---|---|---|
| Category | Peptides | Peptides |
| Standard Dose | Research indicates 10-20 mg daily via oral or sublingual administration. | Research indicates dosing remains experimental. Animal studies use 1-10 mcg/day equivalents. Human protocols are not established. |
| Timing | Morning dosing preferred. Can be taken with or without food (orally active). | No established timing protocol. Morning dosing suggested for neuroprotective applications. |
| Cycle Duration | 2-4 week cycles with equal rest periods. Long-term safety data is extremely limited. | Experimental — no established cycle lengths. |
| Evidence Level | animal_plus_anecdotal | animal_plus_anecdotal |
Dihexa (N-hexanoic-Tyr-Ile-(6)-aminohexanoic amide) is an orally active, blood-brain barrier-permeable oligopeptide derived from angiotensin IV. It binds hepatocyte growth factor (HGF) with high affinity, inhibiting HGF dimerization and synergistically promoting c-Met receptor phosphorylation and signaling. Activation of HGF/c-Met drives procognitive effects through increased dendritic arborization, spinogenesis, and synaptogenesis via the PI3K/AKT signaling pathway. Research indicates it is approximately 10 million times more potent than BDNF for new synapse formation.
Research indicates 10-20 mg daily via oral or sublingual administration.
Morning dosing preferred. Can be taken with or without food (orally active).
2-4 week cycles with equal rest periods. Long-term safety data is extremely limited.
Humanin is a 24-amino acid mitochondrial-derived peptide encoded by the 16S rRNA gene of mitochondrial DNA. It binds IGFBP-3 with high affinity (via Phe-6), interfering with IGFBP-3 binding to importin-beta and suppressing IGFBP-3-mediated apoptosis. It also inhibits the pro-apoptotic protein Bax (Bcl-2 family), preventing mitochondrial outer membrane permeabilization and intrinsic apoptosis. Humanin and IGFBP-3 synergistically protect neurons from amyloid-beta-induced apoptosis, and it activates the STAT3 and ERK1/2 pathways for cytoprotection.
Research indicates dosing remains experimental. Animal studies use 1-10 mcg/day equivalents. Human protocols are not established.
No established timing protocol. Morning dosing suggested for neuroprotective applications.
Experimental — no established cycle lengths.
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