Description
Epitalon is a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Gly (AEDG), developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology. Structurally, it is based on the amino acid composition of Epithalamin, an extract from the pineal gland. Since its first synthesis in 2000, Epitalon has established itself as one of the most intensively investigated peptides in longevity research.
The central research mechanism lies in telomerase activation. In studies on human fibroblasts, Epitalon-treated cells were shown to surpass the Hayflick limit: while control cells lost mitosis capability after passage 34, Epitalon-treated cells continued dividing even after passage 44 while maintaining telomere length. This makes Epitalon one of the few compounds for which telomerase activation in human somatic cells has been documented in research.
Secondarily, Epitalon acts on pineal gland function. In animal models, restoration of physiological melatonin profiles, normalization of circadian rhythm and neuroprotective effects are observed. Other documented effects include modulation of interleukin-2 mRNA, influence on AChE and BuChE as well as geroprotective properties across multiple animal model systems.
In research setups, Epitalon is typically used in cycles (e.g. 10 days), not continuously. As a powder, Epitalon is injected subcutaneously or intramuscularly. For nasal dosing there are only animal data in rats; how much of one spray reaches the body in humans has not been measured.
This variant is a ready-to-use nasal spray: 10mg of Epitalon dissolved in 5 ml saline and 0.4 ml bacteriostatic water (5.4 ml in total), nothing to mix yourself. One spray (0.1 ml) delivers about 185 mcg. A bottle lasts for about 50 sprays. It is made fresh once you place your order and ships as an express item. As a powder for reconstitution, Epitalon remains available in vials.
This information is for research and educational purposes only. No medical recommendations.
Risks & Safety
Epitalon is considered well tolerated per study reports. Across the available studies from the Khavinson program, no significant toxic effects have been documented over several decades.
Observed in research and user reports:
- Nasal lining: the spray adds local effects: brief burning or tingling, an urge to sneeze, a runny nose and a bitter taste in the throat when solution runs down the back. With frequent use a dry lining or slight nosebleeds are possible.
- Circulation: isolated reports of brief fatigue or mild warmth shortly after application.
- Concentrated data: a large part of the research originates from the Khavinson institute and is little independently replicated internationally. The telomerase-activating effect also raises mechanistic questions that are not yet conclusively resolved in the literature.
- No long-term data: robust long-term human studies do not exist. The favorable profile rests primarily on animal models and short-term anecdotal experience.
This classification does not replace medical advice. Risk and responsibility for any actual use lie entirely with the buyer.
Studies
- Overview of Epitalon - Highly Bioactive Pineal Tetrapeptide - International Journal of Molecular Sciences 2025: Current comprehensive review of 25 years of research with Epitalon.
- Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells - Bulletin of Experimental Biology and Medicine 2003: In telomerase-negative human fibroblasts, Epithalon induced expression of the catalytic telomerase subunit, enzymatic activity and telomere elongation.
- Epitalon increases telomere length in human cell lines through telomerase upregulation or ALT activity - Biogerontology 2025: Dose-dependent telomere lengthening in normal human epithelial and fibroblast cells via hTERT and telomerase, whereas in breast cancer cell lines it occurred through the ALT mechanism.
- Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice - Biogerontology 2003: Lifelong dosing in female mice: mean life span was unchanged, maximum life span increased by 12.3% and chromosome aberrations in bone marrow cells decreased.
- Inhibitory effect of peptide Epitalon on colon carcinogenesis induced by 1,2-dimethylhydrazine in rats - Cancer Letters 2002: In a rat model of chemically induced colon carcinogenesis, animals given Epitalon developed fewer and smaller bowel tumors than controls.
