Epithalon, also known as Epitalon or Epithalamin, is a synthetic tetrapeptide derived from the naturally occurring epithalamin peptide complex. It has attracted significant scientific interest for its potential role in promoting healthy cellular aging and longevity. Research suggests that Epithalon may stimulate telomerase activity, the enzyme responsible for maintaining and extending telomeres protective caps at the ends of chromosomes that shorten with each cell division. By supporting telomere length, Epithalon has been studied for its possible ability to delay cellular senescence, enhance DNA stability, and improve the regenerative capacity of tissues. Experimental studies also indicate that Epithalon may help regulate circadian rhythms, modulate melatonin production, and support immune and antioxidant functions.