Epithalon, also known as Epitalon, is a synthetic tetrapeptide composed of alanine, glutamic acid, aspartic acid, and glycine (AEDG). It has been investigated in laboratory research involving cellular regulation, gene expression, and telomere-associated mechanisms.

Experimental studies involving Epithalon have examined telomerase activity, telomere biology, hTERT expression, cellular proliferation, gene-expression regulation, and epigenetic signaling. Cell-culture research has specifically explored its relationship with telomerase activation and changes in telomere length. Additional experimental work has investigated AEDG in relation to gene expression and cellular differentiation.

Epithalon remains an experimental research compound for investigating molecular mechanisms associated with telomere regulation, cellular biology, and gene-expression pathways.