What Is Epithalon?

Epithalon (also spelled Epitalon, Epithalone, Epithalamin, or Epithalamine) is a synthetic tetrapeptide — Ala-Glu-Asp-Gly — derived from a natural polypeptide called epithalamin, secreted by the pineal gland. These spelling variants (epithalamin, epithalamine, epitalon) all refer to the same compound or its direct precursor in the research literature. It was developed through research conducted by the St. Petersburg Institute of Bioregulation and Gerontology beginning in the 1980s and 1990s. Epithalon has been the subject of preclinical and limited human observational studies in the context of cellular longevity biology and telomere research.

Epithalon, Epitalon, Epithalamin — What’s the Difference?

Researchers encounter several spellings in the literature. Here is how they relate:

• Epithalon / Epitalon: The most common transliterations of the Russian Эпиталон — used interchangeably in research literature. The same synthetic tetrapeptide (Ala-Glu-Asp-Gly).
• Epithalamin / Epithalamine: The natural polypeptide extract from bovine pineal gland, from which the synthetic Epithalon sequence was derived. Occasionally used loosely to refer to Epithalon itself in older or translated literature.
• Epithalone: A less common anglicized transliteration — same compound.

When searching research databases, using these spelling variants together will capture the full body of relevant literature.

It is supplied by TrueCanPeptides as a research-grade compound for qualified laboratory investigators. This compound is not approved for therapeutic use by Health Canada or any equivalent regulatory body.

Mechanism of Action — Research Context

The primary mechanism investigated in Epithalon research is its interaction with telomerase, an enzyme responsible for maintaining telomere length at chromosomal ends. Telomere shortening is a well-documented characteristic of cellular senescence, and telomerase activity is associated with cellular replicative capacity in biological research models.

In preclinical studies and in vitro cell culture experiments, Epithalon has been investigated for its ability to activate telomerase expression and influence replicative lifespan in human cell lines. This research is largely in early stages, and findings from animal or cell-based models do not necessarily translate to human outcomes. Epithalon is also studied for interactions with the hypothalamic-pituitary axis in pineal gland biology research.

Research Applications

• Telomere and telomerase research: Epithalon is studied as a tool compound in cell biology research focused on telomere dynamics and chromosomal integrity.
• Cellular senescence models: In vitro and preclinical studies have investigated Epithalon in models of cellular ageing and replicative senescence.
• Pineal gland biology: As a derivative of pineal polypeptides, Epithalon is used in research examining neuroendocrine regulatory pathways.
• Antioxidant pathway investigation: Some preclinical research has examined Epithalon in models assessing oxidative stress markers in tissue.
• Longevity biology: Epithalon appears in experimental gerontology literature, including long-term studies in rodent models examining survival and biomarker profiles.

View Epithalon 10mg — Research Grade

Storage & Handling

Epithalon is a small tetrapeptide and should be stored with standard peptide laboratory precautions:

• Store lyophilised powder at −20°C in sealed, desiccated conditions away from light
• Reconstitute with sterile bacteriostatic water or appropriate buffer as required by your research protocol
• Keep reconstituted peptide at 4°C and use within the timeframe established by your laboratory SOP
• Avoid freeze-thaw cycling, which may impact peptide stability and integrity

Full guidance is available in our Peptide Storage Guide. See our Quality & Purity page for testing standards.

Related Research

Epithalon is part of a broader category of peptide bioregulators investigated in longevity and cellular ageing research. Compounds with overlapping research themes include NAD+ (cellular energetics and SIRT pathways) and MOTS-C (mitochondrial-derived peptides and cellular homeostasis). The Khavinson peptide bioregulator class, of which Epithalon is a part, includes additional compounds such as thymalin and cortagen, studied in gerontology research.

Browse the full research peptides in Canada category for related compounds and sourcing information.

Learn more at the Research Hub or read our introduction at What Are Peptides?

⚠️ Research Use Only: All content on this page is intended strictly for educational and informational purposes. This compound is not approved by Health Canada or any regulatory agency for human therapeutic use. TrueCanPeptides supplies research-grade compounds to qualified researchers only. This is not medical advice. Do not use any information here for self-administration, diagnosis, or treatment. Consult a licensed healthcare professional for any medical concerns.

See also: What is NAD+?

Epithalon and Telomerase: The Research Background

Telomeres are repetitive DNA sequences (TTAGGG in humans) that cap the ends of chromosomes, protecting them from degradation and fusion. With each cell division, telomeres shorten — a process associated with cellular senescence and aging biology. Telomerase is the enzyme that can extend telomere length by adding repeat sequences back to chromosomal ends.

In the majority of somatic (body) cells, telomerase activity is low or absent after development, meaning telomere shortening proceeds with each cell division. In preclinical research, Epithalon has been investigated for its reported ability to activate telomerase expression in human cell lines, making it a compound of interest in cellular longevity research.

Key preclinical findings from published Epithalon research include:

• Activation of telomerase expression in human fetal fibroblast cell lines (in vitro)
• Elongation of telomere length observed in cell culture models
• Extended replicative lifespan of cultured cells in some experimental models
• Interactions with the hypothalamic-pituitary axis in animal models, including reported effects on melatonin production
• Antioxidant activity observed in some in vitro models

It is important to emphasize that these findings come primarily from cell-based and animal models from Russian research institutions. They do not constitute clinical evidence and have not been replicated in large-scale Western clinical trials. The compound remains in early research stages with limited peer-reviewed replication outside its original research group.

Epithalon Structure and Chemistry

Epithalon is a tetrapeptide — a four-amino-acid peptide — with the sequence Ala-Glu-Asp-Gly (alanine-glutamic acid-aspartic acid-glycine). Its molecular formula is C₁₄H₂₂N₄O₉ and molecular weight is approximately 390.34 g/mol.

The compound is synthesized via solid-phase peptide synthesis (SPPS) and supplied in lyophilized (freeze-dried) form. It is water-soluble and can be reconstituted in sterile water or bacteriostatic water for research applications.

• Sequence: Ala-Glu-Asp-Gly (AEDG)
• Molecular weight: ~390.34 g/mol
• Solubility: Soluble in water
• Format: Lyophilized powder
• Storage: −20°C sealed, protected from light and moisture

Epithalon vs. Epithalamin

Epithalon (the synthetic tetrapeptide) is derived from epithalamin — a natural polypeptide complex isolated from the pineal gland of cattle. Epithalamin is the naturally occurring compound that was first studied by Vladimir Khavinson and colleagues at the St. Petersburg Institute of Bioregulation and Gerontology.

Epithalon was synthesized as the active tetrapeptide core of epithalamin, allowing for precise, reproducible research without the variability of natural tissue extracts. This is why researchers searching for “epithalamin” often end up studying Epithalon — the synthetic version is more analytically tractable and reproducible.

Epithalon in the Context of Peptide Bioregulators

Epithalon belongs to a class of compounds called peptide bioregulators — short peptides studied for their purported roles in regulating gene expression and organ function. The bioregulator concept was developed primarily through the work of the St. Petersburg Institute, which has produced a large body of research on short peptides including:

• Thymalin — thymic peptide bioregulator studied in immune system research
• Cortagen — studied in brain and CNS research contexts
• Cardiogen — studied in cardiac tissue research
• Epithalon — pineal/telomere biology research

The bioregulator class is distinct from growth hormone secretagogues, GLP-1 analogues, and other better-characterized peptide research categories. Interest in bioregulators has grown in longevity research communities, though the broader scientific community awaits more rigorous replication of the early Russian findings.

Research Handling and Storage

• Lyophilized storage: −20°C in sealed vial, desiccated, protected from light. Stable 12–24 months under these conditions.
• Reconstitution: Add sterile water or bacteriostatic water slowly; gently swirl to dissolve. Epithalon is generally water-soluble and dissolves readily.
• Reconstituted storage: 4°C for up to 30 days; freeze aliquots at −20°C for longer storage.
• Avoid: Repeated freeze-thaw cycles, exposure to light, high temperatures.

Frequently Asked Questions

Is Epithalon the same as Epitalon?

Yes. Epithalon and Epitalon are the same compound — the synthetic tetrapeptide Ala-Glu-Asp-Gly. “Epitalon” is an alternative transliteration from the Russian; both names refer to the identical molecule. “Epithalone” is another variant spelling. All refer to the same AEDG tetrapeptide.

What is the difference between Epithalon and Epithalamin?

Epithalamin is a natural polypeptide complex extracted from bovine pineal glands. Epithalon is the synthetic tetrapeptide derived from it — a precise, reproducible four-amino-acid molecule. Research peptide suppliers sell the synthetic Epithalon, not the natural extract.

What research context is Epithalon used in?

Epithalon is studied primarily in cellular longevity and telomere biology research, pineal gland and melatonin regulation research, and general aging biology. It is a niche research compound with a relatively small but dedicated body of preclinical literature. All research use is in vitro (cell-based) or animal model contexts.

Where can I find peer-reviewed research on Epithalon?

PubMed contains a body of Epithalon-related literature, primarily from Vladimir Khavinson and colleagues at the St. Petersburg Institute of Bioregulation and Gerontology. Search for “Epithalon telomerase”, “Epitalon peptide bioregulator”, or “AEDG peptide” to locate the relevant literature.

Epithalon is supplied by TrueCanPeptides for qualified in vitro laboratory research purposes only. Not intended for human or animal administration. Not evaluated or approved by Health Canada for therapeutic use.

Related: Epithalon 10mg | Epithalon vs Thymalin | What Are Peptides?