Summary

Epitalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide modelled on the pineal gland peptide epithalamin. Developed by Russian researcher Vladimir Khavinson, it is studied for its potential to modulate telomerase activity and gene expression related to ageing. Evidence is primarily from Russian preclinical and clinical studies, with limited independent replication.

Mechanism

Epitalon's proposed mechanism centres on telomerase activation. It is reported to upregulate telomerase reverse transcriptase (TERT), the catalytic subunit of telomerase, thereby promoting telomere elongation in somatic cells. Additionally, epitalon is proposed to modulate gene expression via interactions with DNA promoter regions, affecting genes involved in ageing, immune function, and circadian regulation. It is also reported to restore pineal gland function and normalise melatonin secretion. The precise molecular pathways are not fully characterised in Western literature.

Evidence base

Evidence Grading: Limited

The evidence base for epitalon is concentrated in Russian-language publications, primarily from a single research group (Khavinson et al.). Independent Western replication is sparse.

Key studies:

  • Khavinson VN, et al. — multiple publications on peptide bioregulation and telomerase activation
  • Russian clinical studies reporting improved immune markers and melatonin normalisation in elderly patients
  • In vitro studies reporting telomere elongation in human somatic cells

Limitations: Predominantly Russian-language literature, limited independent replication, no Western-standard RCTs, potential publication bias from single research group. Findings should be interpreted with caution.

Protocols

In Russian clinical studies, epitalon was administered SC or IM in 5–10 day courses, periodically repeated. No Western-validated dosing protocol exists. All use is research-only.

Epitalon is not a licensed medicine in the UK and is not controlled under the Misuse of Drugs Act. It is sold as a research chemical. Epitalon has no MHRA marketing authorisation and no regulatory body has approved it for human use. Researchers should ensure compliance with UK chemicals and workplace safety legislation.

Vendor notes

Epitalon is available from several UK research peptide suppliers. Buyers should verify purity via COAs and third-party testing. See the vendor directory for vetted UK suppliers.

References

  1. Khavinson VKh, Anisimov VN, Malinin VV, Morozov VG. Peptides and Ageing. Neuroendocrinology Letters. 2003;24(Suppl 4):1–144.
  2. Khavinson VKh, Bondarev IE, Butyugov AA. Epitalon restores telomere length in human somatic cells. Bulletin of Experimental Biology and Medicine. 2003;135(5):470–472.
  3. Khavinson VKh, Morozov VG. Peptides of pineal gland and thymus prolong human life. Neuroendocrinology Letters. 2003;24(4):237–241.
  4. Anisimov VN, Khavinson VKh, Morozov VG. Carcinogenesis and aging. IV. Effect of epithalamin on the carcinogenesis and aging. Experimental Gerontology. 1990;25(3–4):273–282.