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//Research Overview

Epitalon (AEDG): A Research Reference Overview

Epitalon, also written Epithalon or Epithalone, is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) that has been studied in the gerontology and pineal-bioregulation literature for over two decades. This reference page summarizes what researchers have examined in preclinical, in-vitro, and in-silico models. All content is provided strictly for laboratory research use; nothing here describes human use, dosing, or therapeutic outcomes.

VANTA Research Desk · Updated 2026-06-19

All products are sold strictly for laboratory research purposes only. Not for human consumption, diagnostic, or therapeutic use.

What is Epitalon?

Epitalon is a short synthetic peptide with the amino-acid sequence Ala-Glu-Asp-Gly (AEDG), commonly abbreviated by the single-letter code and frequently referred to in the literature as Epithalon or Epithalone. It was designed based on the amino-acid composition of Epithalamin, a peptide preparation derived from the bovine pineal gland, and it sits within a broader class of compounds that researchers describe as short regulatory or bioregulator peptides.

In the published literature, Epitalon is characterized as a pineal-associated tetrapeptide that has been studied in connection with the pineal gland, retina, and brain in model systems. A 2025 review in the International Journal of Molecular Sciences catalogs the compound across in-vitro, in-vivo, and in-silico work spanning roughly 25 years, framing it as a frequently investigated subject in aging-related research.

Studied mechanisms

Several candidate mechanisms have been examined in the literature, none of which constitute established human outcomes. The most cited is telomerase-related activity: a 2003 in-vitro study reported that the peptide was associated with induction of telomerase catalytic-subunit activity and telomere elongation in cultured human somatic cells.

Researchers have also examined gene-expression and epigenetic hypotheses. A 2020 study in Molecules reported that AEDG was associated with increased expression of neurogenic-differentiation markers in cultured stem cells and used molecular modeling to propose interaction with specific histone sites as a possible epigenetic mechanism.

Additional model-system work has explored associations with melatonin synthesis and free-radical (antioxidant) processes in the pineal-bioregulation literature. These remain mechanistic observations in experimental systems and are reported here only as research framing.

Research models and findings (hedged)

Epitalon has appeared across a range of experimental designs. In rodent-aging work, Anisimov, Khavinson, and colleagues examined the tetrapeptide in female Swiss-derived SHR mice, reporting associations with certain biomarkers of aging, chromosome-aberration frequency in bone-marrow cells, and survival parameters of the longest-lived cohort fraction; in that report the authors noted no influence on total spontaneous tumor incidence.

In reproductive-cell models, a 2022 study in Aging examined the peptide in the context of post-ovulatory aging of mouse oocytes cultured in vitro. Across these reports, findings are specific to the model organism, cell type, and experimental conditions used, and should not be extrapolated beyond those contexts. They are summarized here so researchers can locate primary sources, not as claims about any outcome in humans.

How VANTA verifies it

VANTA supplies Epitalon as a reference-grade material for laboratory research use only. Each lot is characterized for identity and purity before release. Identity is confirmed by mass spectrometry, which checks that the measured molecular mass corresponds to the expected AEDG tetrapeptide. Purity is assessed by reversed-phase HPLC to quantify the main peak relative to process- and synthesis-related impurities.

Every batch ships with a per-batch Certificate of Analysis (COA) documenting the analytical results for that specific lot, so researchers can match what they receive to its characterization data. This documentation supports reproducibility and traceability in a laboratory setting and is part of VANTA's standard reference-grade handling.

Research-use-only notice

This material is intended exclusively for in-vitro and laboratory research conducted by qualified professionals. It is not a drug, supplement, food, or cosmetic, and it is not intended for human or veterinary use, diagnosis, treatment, or any form of consumption. None of the information on this page should be read as medical guidance or as a representation that the compound is safe or effective for any use in humans. Researchers are responsible for handling, storing, and disposing of the material in accordance with applicable institutional and regulatory requirements.

References

  1. 1.Khavinson et al. (2003) - Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells, Bull Exp Biol Med
  2. 2.Khavinson et al. (2020) - AEDG Peptide (Epitalon) Stimulates Gene Expression and Protein Synthesis during Neurogenesis: Possible Epigenetic Mechanism, Molecules
  3. 3.Anisimov et al. (2003) - Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice, Biogerontology
  4. 4.Yue et al. (2022) - Epitalon protects against post-ovulatory aging-related damage of mouse oocytes in vitro, Aging (Albany NY)
  5. 5.Araj et al. (2025) - Overview of Epitalon: Highly Bioactive Pineal Tetrapeptide with Promising Properties, Int J Mol Sci