Longevity

Epithalon (Epitalon)

Reviewed 22 October 2026 · How we research

Also known as: Epitalon, Epithalone, AEDG peptide, Epithalamin

What is Epithalon?

Epithalon (also spelled Epitalon) is a four-amino-acid peptide, Ala-Glu-Asp-Gly. It was synthesised as a defined version of epithalamin, an extract of the pineal gland studied in Russia from the 1980s.

Its reputation as a longevity peptide comes from a series of Russian studies reporting that it activated telomerase in human cells and extended lifespan in rodents.

How Epithalon works

The headline finding is that Epithalon induced telomerase activity and lengthened telomeres in cultured human fibroblasts. Telomeres shorten with each cell division, and telomere length is a marker of cellular ageing. Other studies suggest effects on melatonin rhythm (consistent with its pineal origin), antioxidant enzymes and gene expression. How a tetrapeptide does this is not established.

What the research shows

  • Epithalon induced telomerase and telomere elongation in human somatic cells in culture (Khavinson et al., 2003).
  • Mouse and rat studies reported slowed age-related changes, fewer spontaneous tumours and modest lifespan extension.
  • Small Russian human studies of epithalamin and Epithalon in older adults report improved markers; these have not been independently replicated.

Epithalon side effects

Russian studies report no notable side effects. Telomerase activation has a theoretical downside: many cancers depend on telomerase to keep dividing. No long-term independent human safety data exist.

UK legal status

Epithalon is not licensed in the UK or elsewhere and is sold only for research.

More detail, including current UK research-vial prices: Epithalon UK guide. For the doses used in published studies and the reconstitution maths: Epithalon dosing in the literature.

Epithalon: frequently asked questions

What is Epithalon?

A synthetic four-amino-acid peptide (AEDG) derived from research on pineal-gland extracts in Russia.

Is it Epithalon or Epitalon?

Both spellings refer to the same peptide; Epitalon is the transliteration used in many Russian papers.

Does Epithalon lengthen telomeres?

In cultured human cells it activated telomerase and lengthened telomeres. This has not been demonstrated in controlled human trials.

Is Epithalon safe?

Russian studies report few side effects, but there are no independent long-term safety trials, and telomerase activation is a theoretical cancer concern.

References

  1. Khavinson VKh, Bondarev IE, Butyugov AA. Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells. Bull Exp Biol Med. 2003;135:590–592.
  2. Anisimov VN, et al. Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice. Biogerontology. 2003;4:193–202.

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