Epitalon is considered the "fountain of youth" peptide. It is a tetra-peptide, which means that it is composed of four amino acid chains. The peptide is used to regulate the cell cycle during telomerase activity. Telomerase, also called telomere terminal transferase, is an enzyme made of protein and RNA subunits that elongates chromosomes. When telomerase activity is not present (when we age), our cells age. Our telomeres get shorter and begin to die off. If telomerase is activated in our cells, our telomeres lengthen, the cell continues to grow and divide, delaying the aging process.