Also known as: epitalon, epithalamin, Ala-Glu-Asp-Gly, tetrapeptide epithalon, Epitalon
Tetrapeptide derived from the pineal gland studied for telomere elongation and anti-aging effects.

PSO vial render · Scientific images from Wikipedia · Tap to enlarge
Synthetic peptide
Epitalon is a synthetic peptide, telomerase activator, and putative anti-aging compound, which was identified as the putative active component of a bovine pineal gland extract known as epithalamin.
Stimulates telomerase activity, regulates melatonin secretion from pineal gland, antioxidant and anti-tumor properties.
Epithalon is a four-amino-acid peptide (Ala-Glu-Asp-Gly) developed from Russian longevity research led by Professor Vladimir Khavinson. In laboratory studies, researchers reported that it switched on telomerase activity in human cells and influenced circadian melatonin rhythms in older subjects. It remains one of the most studied peptides in the experimental aging field. It is not FDA approved.
Epithalon's headline mechanism is telomerase. Telomeres are the protective caps on chromosomes that shorten each time a cell divides, and telomerase is the enzyme that can rebuild them. In cell studies, epithalon appeared to activate telomerase in human somatic cells, effectively lengthening telomeres in the dish. Separately, Khavinson's group reported effects on the pineal gland's melatonin rhythm, linking the peptide to circadian regulation research.
Telomerase switched on in human cells
In a widely cited cell study, researchers reported that epithalon induced telomerase activity in human somatic cells and that telomeres lengthened as a result. For aging researchers, this was a striking result: a tiny four-amino-acid peptide appeared to flip a switch tied to one of the central mechanisms of cellular aging.
Khavinson, Bondarev and Butyugov, 2003, Bulletin of Experimental Biology and Medicine
Circadian rhythm and melatonin in older subjects
Khavinson's team also studied epithalon's effects on the pineal gland and melatonin production. In published work, they reported that the peptide influenced circadian melatonin rhythms, which tend to flatten with age. The researchers proposed a link between the peptide, the pineal gland, and the body's internal clock.
Khavinson et al., 2003, Neuro Endocrinology Letters
Lifespan and age-related disease in animal models
In long-running animal experiments, researchers reported that epithalon extended average lifespan in rodents and reduced the incidence of age-related conditions, including certain tumors. These were laboratory animal findings, and the authors were careful to frame them as experimental gerontology rather than any claim about humans.
Anisimov et al., early 2000s, experimental gerontology literature
Decades of follow-up in peptide geroprotection
Epithalon became the flagship molecule of Khavinson's peptide geroprotection program, which has published dozens of papers over several decades. Later reviews summarized evidence spanning cell cultures, animal models, and small human observational cohorts, keeping epithalon at the center of the experimental longevity peptide conversation.
Khavinson and colleagues, review literature 2000s-2010s, Advances in Gerontology
Last updated 2026-10-06. New findings are added as published research appears.
What is epithalon?
Epithalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) developed from the longevity research program of Professor Vladimir Khavinson in Russia. Laboratory studies reported telomerase activation in human cells and effects on circadian melatonin rhythms. It is for laboratory research only and is not FDA approved.
What did the telomere studies find?
In a 2003 cell study, researchers reported that epithalon induced telomerase activity in human somatic cells, and telomeres lengthened. Telomeres are protective chromosome caps that shorten with cell division, so the finding drew major attention in aging research. It was a laboratory finding, not a human anti-aging claim.
Who is Vladimir Khavinson?
Professor Vladimir Khavinson is a Russian gerontologist who led decades of research on short regulatory peptides and aging. His group developed epithalon and published extensively on peptide effects in cell, animal, and observational human studies.
Is epithalon FDA approved?
No. Epithalon is an investigational research compound. It has not been approved by the FDA for any indication, and products sold online are for in-vitro laboratory research only, not for human consumption.
What is the difference between epithalon and epithalamin?
Epithalamin is the natural pineal gland extract the research started from. Epithalon is the synthetic four-amino-acid peptide designed to capture its active sequence. Most modern research references epithalon, the synthetic version.
What did animal longevity studies find?
Published animal experiments reported extended average lifespan and reduced age-related pathology in rodents given epithalon. Researchers framed these as experimental gerontology findings in animals, not evidence of effects in humans.
Can I use epithalon personally?
No. Epithalon from research suppliers is for laboratory research only. It is not for human consumption, has not been evaluated by the FDA, and is not a medicine. This page describes published research only.
Community Reports - Not Medical Advice
The following is aggregated from public forums, Reddit, and research communities. These are anecdotal reports from researchers only - not verified clinical data and not a recommendation of any kind.
Epithalon (also known as epitalon, epithalamin) is studied within the longevity and anti-aging research community. Tetrapeptide derived from the pineal gland studied for telomere elongation and anti-aging effects.
Last updated October 28, 2026
Research status: active. Epithalon appears across longevity and anti-aging research forums and academic literature. Researchers note this compound falls in the anti aging category.
Last updated October 28, 2026
Share your opinion or research experience with Epithalon. Comments are reviewed before appearing.
All products listed on Peptide Stores Online are for in-vitro laboratory and educational research purposes only. Not for human or animal consumption. Not evaluated by the Food and Drug Administration. Not intended to diagnose, treat, cure, or prevent any disease or condition. All sellers and buyers agree to full research-use-only terms at account creation. Peptide Stores Online assumes no liability for misuse of any product listed on this platform.