Epitalon

What is Epitalon

Epitalon, also written Epithalon, is a synthetic tetrapeptide built from four amino acids: alanine, glutamic acid, aspartic acid, and glycine (Ala-Glu-Asp-Gly, or AEDG). It was designed by Russian gerontologist Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology as a short, stable copy of an active fragment found in Epithalamin, a natural extract of the pineal gland.

The pineal gland is the small organ in the brain that releases melatonin and helps set the body clock. Its activity declines with age. Epitalon was created to capture the regulatory signal of that gland in a single, well-defined molecule that can be made under pharmaceutical-grade conditions.

We supply it as a lyophilized (freeze-dried) powder, the same form used across the published research.

How it works

The clearest finding is on telomeres. Every time a cell divides, the protective caps at the ends of its chromosomes get shorter. Once the caps run out, the cell stops dividing. Epitalon switches on telomerase, the enzyme that rebuilds those caps, in human somatic cells. In Khavinson's landmark 2003 experiments, treated cells lengthened their telomeres and kept dividing well past the limit normally seen in untreated cultures.

A second pathway is epigenetic. Epitalon modulates gene expression in laboratory models and is reported to interact with chromatin. Recent work shows it triggers expression of neurogenesis-related genes and proteins, which suggests it works as a small-molecule epigenetic regulator rather than as a classic receptor agonist.

A third pathway runs through the pineal gland itself. In pinealocyte cultures, Epitalon boosts melatonin production and supports the natural day-night rhythm of the cells. In aged animals, the same peptide helps restore circadian patterns of melatonin release that fade with age.

Lifespan studies tie these mechanisms together. In Drosophila, mice, and female rats, Epitalon-treated groups lived longer on average than controls, with fewer age-related tumors in some protocols. Together the data make Epitalon one of the most thoroughly studied peptides in longevity research.

Often studied alongside

Khavinson's research program pairs Epitalon with Thymalin, a thymus peptide that targets the immune side of aging while Epitalon targets the pineal side. The two are commonly studied together as a thymus-pineal "bioregulator stack."

In modern longevity stacks, Epitalon is also studied next to MOTS-c, a mitochondrial-derived peptide linked to metabolic aging.

NAD+ precursors are another natural pairing in cellular-aging research, since telomere maintenance and mitochondrial NAD+ levels both decline with age.

For reconstitution, the standard solvent in published protocols is bacteriostatic or sterile water.

Documentation