Epitalon

Epitalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide derived from Epithalamin, isolated from bovine pineal gland tissue. It was developed and extensively studied by Professor Vladimir Khavinson at the St. Petersburg Institute of Biogerontology beginning in the 1970s. Khavinson's group published numerous studies on Epitalon's effects across aging, immune function, and neuroendocrine regulation.

The compound's most cited mechanism involves telomerase activation: cell culture studies have shown Epitalon can activate telomerase and elongate telomeres in somatic cells — an effect of significant interest to longevity researchers. Additional research has examined effects on melatonin synthesis and circadian rhythm regulation through apparent action on pinealocytes, contributing to observed effects on sleep architecture and neuroendocrine function in aging animal models.

Longitudinal studies in rodents and primates reported life extension effects associated with Epitalon administration, along with reduced oxidative stress markers and improved immune parameters. Epitalon remains one of the more studied compounds in the anti-aging peptide literature, with a body of work spanning several decades from the Russian biogerontology program.