Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Dihexa | Sermorelin | |
|---|---|---|
| Category | Peptides | Peptides |
| Standard Dose | Research indicates 10-20 mg daily via oral or sublingual administration. | Research indicates 200-300 mcg administered once daily at bedtime via subcutaneous injection. |
| Timing | Morning dosing preferred. Can be taken with or without food (orally active). | Bedtime administration (aligns with natural nocturnal GH release). On empty stomach. |
| Cycle Duration | 2-4 week cycles with equal rest periods. Long-term safety data is extremely limited. | 12-24 week cycles. Some protocols use continuous treatment. |
| Evidence Level | animal_plus_anecdotal | strong_human |
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.
Sermorelin is a synthetic 29-amino acid peptide representing the biologically active fragment of GHRH (amino acids 1-29) with full functional activity. It activates GHRH receptors on pituitary somatotrophs, stimulating cAMP production via Gs protein/adenylate cyclase and MAP kinase pathways. Due to the interactive effects of sermorelin and endogenous somatostatin, GH release is episodic rather than continuous. Sermorelin also stimulates pituitary gene transcription of GH mRNA, increasing and preserving pituitary GH reserve.
Research indicates 200-300 mcg administered once daily at bedtime via subcutaneous injection.
Bedtime administration (aligns with natural nocturnal GH release). On empty stomach.
12-24 week cycles. Some protocols use continuous treatment.
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