Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Dihexa | Tesamorelin | |
|---|---|---|
| Category | Peptides | Peptides |
| Standard Dose | Research indicates 10-20 mg daily via oral or sublingual administration. | Research indicates 2 mg administered once daily via subcutaneous injection (FDA-approved dose for HIV lipodystrophy). |
| Timing | Morning dosing preferred. Can be taken with or without food (orally active). | Morning administration on empty stomach. Consistent daily timing recommended. |
| Cycle Duration | 2-4 week cycles with equal rest periods. Long-term safety data is extremely limited. | 26+ weeks in clinical trials. Long-term use is common; effects are not sustained after discontinuation. |
| Evidence Level | animal_plus_anecdotal | Strong (FDA-approved indication), Moderate (longevity) |
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.
Tesamorelin is an FDA-approved synthetic 44-amino acid GHRH analog with a trans-3-hexenoic acid modification at the N-terminal tyrosine that confers resistance to DPP-IV degradation. It binds GHRH receptors on anterior pituitary somatotrophs, stimulating endogenous GH production and secretion while maintaining pulsatile release patterns. Tesamorelin selectively reduces visceral adipose tissue (15-20% reduction in trials) while preserving subcutaneous fat, and markedly increases plasma GH and IGF-1 levels with once-daily dosing.
Research indicates 2 mg administered once daily via subcutaneous injection (FDA-approved dose for HIV lipodystrophy).
Morning administration on empty stomach. Consistent daily timing recommended.
26+ weeks in clinical trials. Long-term use is common; effects are not sustained after discontinuation.
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