Epitalon
Not FDA-approved
Also known as: Epithalon, Ala-Glu-Asp-Gly (AEDG)
Epitalon is a lab-made chain of four amino acids, based on epithalamin, an extract of the pineal gland. In cell studies, it switched on telomerase, the enzyme that rebuilds the protective tips of chromosomes. No well-controlled trial has shown that it slows aging or improves sleep in people.
How it works
- Telomeres are protective caps on the ends of chromosomes. Their length is used as a marker of aging.
- In human fetal cells grown in the lab, it switched on the telomerase gene and lengthened telomeres.
- A 2025 study from an independent UK lab found the same telomere lengthening in normal human cells.
Evidence
Aging and lifespan
Animal studies from the developer's group report small gains, mostly in the longest-lived animals. In a lifelong study in female mice, it did not change average lifespan or overall tumor rates. The longest-lived mice lived about 12% longer, and leukemia was less common. In rats on a normal light cycle, it did not change lifespan. No trial in people has tested whether it extends life.
Caveats
- Human data come from a few small studies by the developer's group, including one in an inherited eye disease. Human safety has not been properly studied by any route.
- Death-rate figures often quoted for epitalon come from studies of epithalamin, the natural pineal extract it was modeled on. That is a different substance, and its largest effects were seen when combined with a thymus extract.
- In breast cancer cells, it also lengthened telomeres, through a backup pathway that cancer cells use (ALT). Active cancer is a reason to avoid it.
- Long-term safety is unknown, whether it is used in short courses or continuously.
- There are no human safety data in pregnancy.
References
- Khavinson VKh, et al. Bull Exp Biol Med. 2003;135:590-592.
- Al-Dulaimi S, et al. Biogerontology. 2025;26:178.
- Anisimov VN, et al. Biogerontology. 2003;4:193-202.
- Khavinson VKh, Morozov VG. Neuro Endocrinol Lett. 2003;24:233-240 (epithalamin, not epitalon).
- Khavinson V, et al. Neuro Endocrinol Lett. 2002;23:365-368.
This page is for education only. It is not medical advice. Decisions about any treatment belong with a physician who knows your history.