Epitalon

Overview

Epitalon (also written epithalon) is a synthetic tetrapeptide, Ala-Glu-Asp-Gly (AEDG), designed by Vladimir Khavinson's group as a simplified analog of the pineal extract epithalamin. It is best known for the claim that it activates telomerase and lengthens telomeres, which has driven its reputation as a longevity peptide. That claim should be read cautiously: the supporting evidence is largely preclinical (human cell cultures and rodent lifespan studies), most of it from the originating research school, and it has not been independently confirmed to activate telomerase or extend lifespan in living humans.

An independent 2025 cell-culture study reported telomere lengthening in human cell lines, which strengthens the in-vitro case, but this remains a long way from a controlled human outcome. Epitalon is not approved by the FDA or EMA, human data are older, small, and largely non-Western, and the telomerase and longevity narrative is best treated as a preliminary hypothesis rather than an established effect.

Dosing

There is no Western-validated human dose. Circulating figures trace to older non-Western protocols and anecdotal use (short subcutaneous courses over 10 – 20 days), not to controlled trials, so they are descriptive rather than recommended.

Side effects

The human safety profile is poorly characterized. Published work is mostly preclinical, so beyond anecdotal injection-site reactions there is little controlled human data on adverse effects.

Storage

Peptides like epitalon are generally kept as a lyophilized powder, refrigerated and away from light, then refrigerated once reconstituted and used within a few weeks. See the full storage & safety guide for general handling and disposal basics.