Epithalon (also known as Epitalon, Epithalone, or Epithalamin) is a small synthetic peptide that appears to activate the telomerase enzyme and may promote the release of melatonin. Experimental research has suggested its potential to slow down age-related alterations in reproductive and immune systems and improve the life span of mice and rats. Apart from its potential in regulating aging, the peptide also has played an important role in research conducted upon certain classes of cancer, infectious diseases, and DNA regulation.