Epithalon

Synthetic tetrapeptide (pineal) · Also known as Epitalon, Epithalone, AEDG peptide

What is epithalon?

A synthetic version of a naturally occurring pineal gland peptide (Ala-Glu-Asp-Gly) studied for its ability to activate telomerase and extend telomere length. Developed by Russian gerontologist Vladimir Khavinson over several decades of research.

Epithalon is a tetrapeptide based on the amino acid composition of epithalamin, a bovine pineal gland extract. In 2017 it was confirmed to be naturally present in the human pineal gland. Human cohort studies in elderly patients reported reduced mortality over a 6-year follow-up period, though these results come primarily from a small number of Russian studies and have not been independently replicated. Recent Western studies have confirmed its telomerase-activating properties in human cell lines.

Key takeaway: Epithalon is the most studied telomerase-activating peptide, with human data showing telomere elongation in elderly patients, though mortality reduction claims rely primarily on unreplicated Russian studies.

Benefits & evidence

Telomere elongation Moderate confidence
Melatonin regulation Moderate confidence
Antioxidant defense Moderate confidence
Reduced all-cause mortality Preliminary confidence
Sleep quality improvement Preliminary confidence

How it works

Epithalon activates telomerase, the enzyme responsible for maintaining and extending telomeres. the protective caps at the ends of chromosomes that shorten with each cell division. By upregulating the catalytic subunit of telomerase (hTERT), Epithalon enables cells to maintain telomere length, effectively extending their replicative lifespan.

Beyond telomerase activation, Epithalon interacts with specific DNA sequences through hydrophobic interactions and hydrogen bonds. It also modulates melatonin production from the pineal gland, helps normalize circadian rhythms, and has demonstrated antioxidant properties by upregulating enzymes like superoxide dismutase and glutathione peroxidase.

Dosing information

Typical dosing protocol
Starting dose

5-10 mg/day

10-20 day cycle
Maintenance dose

5-10 mg/day

10-20 day cycle, repeated 2-3x per year

Epithalon is typically administered in short cycles rather than continuously. Some practitioners use lower doses based on updated translations of the original Russian protocols. Consult a healthcare provider.

Side effects

Most side effects tend to improve as your body adjusts.

Injection site reaction Common
Mild headache Uncommon
Nausea Uncommon
Fatigue Uncommon
Sleep pattern changes Uncommon

Research (10 studies)

Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions. Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2026