Epitalon (also called Epithalon or AEDG) is a synthetic tetrapeptide (Ala‑Glu‑Asp‑Gly) derived from the pineal peptide epithalamin. Research shows that Epitalon activates telomerase and lengthens telomeres in mammalian cells, which may slow down cellular aging. Studies also note that this peptide was isolated from pineal gland extracts and is available as a research supplement; its telomerase activation may extend lifespan and improve melatonin regulation. Researchers investigate Epitalon for its potential to support DNA repair, antioxidant activity and healthy circadian rhythms. This compound is supplied for laboratory research only and is not approved for human use.