What is Epitalon? Epitalon, also commonly known as Epithalon peptide or Epithalone is a synthetic tetrapeptide with four amino acids in its structure. The amino acid sequence of Epitalon is Ala-Glu-Asp-Gly with a molecular formula C14H22N4O9 (1). Epitalon is a derivative of Epithalamin or Epithalamine which is a polypeptide naturally released from the pineal gland. For those of you who haven’t heard about the pineal gland, it is a small pea-shaped gland located deep in the brain. It is also referred to as the “third eye”. This synthetic peptide was originally discovered by Russian scientist Vladimir Khavinson. Since then most of the clinical studies centered around Epitalon were carried out in St. Petersburg Institute of Bioregulation and Gerontology.