Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Epitalon | Thymosin Alpha-1 | |
|---|---|---|
| Category | Growth Factors | Growth Factors |
| Standard Dose | — | Research indicates 1.6 mg administered twice weekly via subcutaneous injection. |
| Timing | — | Morning administration preferred. No food timing restrictions. |
| Cycle Duration | — | 8-12 week cycles, with periodic breaks. Some protocols use continuous low-dose maintenance. |
| Evidence Level | Emerging | strong_human |
Synthetic tetrapeptide studied in Russian longevity literature for pineal signaling, circadian regulation, and telomerase-related hypotheses.
Thymosin Alpha-1 is a 28-amino acid peptide naturally produced by the thymus that acts as a pleiotropic immune modulator through Toll-like receptors (TLR2, TLR3, TLR4, TLR7, TLR9) on myeloid and plasmacytoid dendritic cells. It activates downstream IRF3, NF-kB, p38MAPK, and MyD88 signaling pathways to promote cytokine production. It modulates TNF-alpha, IFN-gamma, and IL-2 in CD4+ and CD8+ T lymphocytes by upregulating CD40/CD40L and downregulating PD-L1/PD-1 expression, enhancing both innate and adaptive immunity.
Research indicates 1.6 mg administered twice weekly via subcutaneous injection.
Morning administration preferred. No food timing restrictions.
8-12 week cycles, with periodic breaks. Some protocols use continuous low-dose maintenance.
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