Epithalon (Epitalon) is a synthetic tetrapeptide corresponding to the sequence Ala-Glu-Asp-Gly. It was developed as the active fragment of the pineal extract epithalamin. Laboratory research focuses on telomerase activity, telomere length dynamics, and circadian/pineal regulatory pathways. The compound is synthesized using solid-phase peptide synthesis (or equivalent high-purity methods) and purified through HPLC to ensure analytical-grade standards suitable for controlled research environments.