Longevity & Mitochondrial
Epitalon (Epithalon)
Also known as Epitalon · Epithalon · Epithalone · Ala-Glu-Asp-Gly · AEDG peptide
Epitalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) developed in Russia as an analog of epithalamin, a pineal gland extract. It is studied for its reported ability to influence telomerase activity, melatonin production, and circadian rhythm. Most of the research consists of Russian-language studies from a single research group spanning several decades, with essentially no independent Western clinical replication, so its anti-aging claims remain unproven in humans.
Studied / used for
- Studied for telomerase activity in cell cultures
- Researched in the context of circadian rhythm and melatonin regulation
- Studied in the context of geroprotective and neuroendocrine effects
- Researched for immune and pineal function
Commonly reported side effects
- Injection site redness or irritation
- Mild headache or dizziness
- Transient fatigue or lethargy
- Occasional sleep changes
- Potential immunogenicity (a concern flagged by the FDA)
Not medical advice.
This is an educational reference. Peptalk does not recommend, prescribe, endorse, or rate any compound, and provides no dosing information. Do not start, stop, or change any peptide, hormone, supplement, or therapy based on this page. All clinical decisions must be made with your licensed healthcare provider.