Epithalon (also known as Epitalon or Epithalone) is a synthetic version of the polypeptide epithalamion, which is naturally produced in humans in the epithalamium-epiphyseal region of the brain. Epithalamion increases a person’s resistance to emotional stress and also acts as an antioxidant. It is a bioregulator for the endocrine system, especially for the pineal gland, and has been shown to lengthen telomeres in human cells. It reduces lipid oxidation ROS (reactive oxygen species) and normalizes T cell function, which assists with cell repair. It also demonstrates the ability to restore and normalize melatonin levels in older people who have lost some pineal function due to aging.