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Epitalon

Longevity
·390 Da·4 amino acids·C₁₄H₂₂N₄O₉
Peptide Database
4Mechanisms
6Benefits
19Studies
1Dosages

Epitalon (also spelled Epithalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) based on the natural peptide epithalamin, which is extracted from the pineal gland. It was developed by the Russian gerontologist Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology.

SequenceAEDG
Research Dosage Notes

Subcutaneous or intramuscular injection: typically 5-10 mg/day for 10-20 consecutive days, repeated once or twice per year. Common protocols include 5 mg daily for 20 days or 10 mg daily for 10 days, with 4-6 month off-cycle periods. Some intermittent protocols use 10 mg on days 1, 5, 9, 13, and 17. Injection sites should be rotated (abdomen, thighs, upper arms).

Mechanisms of Action

4

Telomerase activation

Moderate

Induces telomere elongation via increased telomerase activity. Binds selectively to DNA regions rich in CAG and ATTTC repeats in promoter regions of the telomerase gene, upregulating telomerase transcription.

Telomerase / hTERT gene expression

Chromatin remodeling

Emerging

Acts as a molecular modulator that loosens tightly wound chromatin regions, allowing previously silenced genes involved in antioxidant defenses and DNA repair to be reactivated.

Epigenetic regulation / chromatin accessibility

Melatonin secretion restoration

Moderate

Restores age-related decline in melatonin secretion by the pineal gland, demonstrated in both aged monkeys and humans.

Pineal gland / melatonin synthesis

Antioxidant enzyme upregulation

Moderate

Increases activities of superoxide dismutase, glutathione peroxidase, and glutathione-S-transferase in aging animals.

Antioxidant defense enzymes (SOD, GPx, GST)

Benefits

6
70

Telomere lengthening

Longevity

Significantly increased telomere lengths in blood cells of patients aged 60-65 and 75-80 in human clinical studies.

Moderate
60

Lifespan extension

Longevity

Extended lifespan in mice and rats in animal studies without inducing tumor growth.

Moderate
55

Tumor and metastasis reduction

Immune

Reduced spontaneous tumors and metastases in mouse models, showing oncostatic and anti-metastatic properties.

Moderate
65

Melatonin normalization

Sleep

Restored melatonin secretion in aged monkeys and humans, potentially improving circadian rhythm and sleep quality.

Moderate
55

Retinal protection

Longevity

Showed positive clinical effect in 90% of retinitis pigmentosa patients in human studies.

Moderate
60

Antioxidant defense enhancement

Longevity

Increased key antioxidant enzyme activities (SOD, GPx, GST) in aging rat models, reducing oxidative damage.

Moderate

Dosage Data

1
21
Animal

Study: The effect of the synthetic pineal peptide Epitalon (Ala-Glu-Asp-Gly) on prolife... Year: 2003 | Route: subcutaneous

Research Studies

19
2026

Therapeutic peptides are emerging as promising adjuncts in the management of orthopaedic injuries, g...

Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · Omar F Rahman, Steven J Lee, William A Seeds

2025

Epitalon, a naturally occurring tetrapeptide, is known for its anti-aging effects on mammalian cells...

Biogerontology · Sarah Al-Dulaimi, Ross Thomas, Sheila Matta, Terry Roberts

2022

Epitalon protects against post-ovulatory aging-related damage of mouse oocytes

Aging · Xue Yue, Sai-Li Liu, Jia-Ni Guo, Tie-Gang Meng, Xin-Ran Zhan...

2020

It was shown that AEDG peptide (Ala-Glu-Asp-Gly, Epitalon) regulates the function of the pineal glan...

Molecules (Basel, Switzerland) · Vladimir Khavinson, Francesca Diomede, Ekaterina Mironova, N...

2012

The effects of melatonin and epithalamin on the content of protein and lipid peroxidation products i...

Bulletin of experimental biology and medicine · I I Zamorskii, I Yu Sopova, V Kh Khavinson

This database is for educational and research purposes only. It is not medical advice. Consult a healthcare professional before using any peptide or supplement.

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