Epitalon Peptide 10mg – AEDG Tetrapeptide

Chemical diagram for Epithalon source: https://en.wikipedia.org/wiki/Epitalon#/media/File:Epitalon.png

KEY SPECIFICATIONS

PRODUCT OVERVIEW

Epitalon (Epithalon/Ala-Glu-Asp-Gly) is a synthetic tetrapeptide structurally derived from epithalamin—a peptide complex originally isolated from the pineal gland. This short-chain peptide has been extensively investigated in biogerontology research for over 25 years for effects on telomerase activity, telomere maintenance, and circadian regulation. Research demonstrates Epitalon functions as a multi-pathway geroprotector targeting multiple hallmarks of aging: telomere attrition, mitochondrial dysfunction, epigenetic alterations, cellular senescence, and altered intercellular communication. Studies show dose-dependent telomere extension in human cell lines via TERT activation (2.4 kb → 4 kb at 0.5-1 μg/ml, 4 days). Additionally, Epitalon enhances melatonin synthesis through AANAT enzyme and pCREB transcription factor upregulation. BIONIX supplies Epitalon with ≥99% purity for telomere biology and biogerontology research.

MECHANISM OF ACTION

Epitalon’s mechanism involves multiple interconnected pathways relevant to cellular aging and homeostasis, making it a unique multi-target research tool in biogerontology.

Telomerase Activation and TERT Expression:

Khavinson et al. demonstrated Epitalon induces telomerase activity via hTERT expression in human normal epithelial and fibroblast lines. Extension occurs dose-dependently (0.5-1 μg/ml, 4 days) through telomerase activation rather than ALT pathways.

Pineal Melatonin Pathway Modulation:

Studies demonstrate Epitalon increases melatonin release in perifused rat pineal glands (young and aged) with effects more potent and prolonged than other pineal peptides (e.g., Vilon), significant after 3 hours.

Epigenetic Regulation:

By binding promoter regions, Epitalon loosens chromatin structure and restores youthful expression patterns—acting as a precision epigenome modulator without DNA sequence alteration.

Antioxidant and Cytoprotective Effects:

Proposed Mechanism Cascade:

Epitalon → hTERT Upregulation → Telomerase Activation → Telomere Extension / 
AANAT/pCREB Activation → Melatonin Synthesis → Circadian Re-entrainment / 
Chromatin Loosening → Youthful Gene Expression → Epigenetic Reprogramming /
Antioxidant Enzyme Modulation → Oxidative Stress Reduction → Genoprotection

Comparative Profile:

RESEARCH APPLICATIONS

• Telomere Biology and Cellular Aging: Primary application for investigating telomerase activity (TRAP assays), TERT expression analysis (Western blot, qPCR), telomere length quantification (qPCR, Southern blot, FISH), replicative lifespan studies beyond Hayflick limit, and senescence markers (β-galactosidase, p16/p21, SASP). Research demonstrates effects in human normal epithelial cells, fibroblasts, and selected cancer cell lines (21NT, BT474) enabling comparative studies. In bovine cumulus-oocyte complexes, Epitalon enhances TERT protein localization for telomere repair—suggesting reproductive biology research applications.

• Circadian Rhythm and Chronobiology: Pineal origin makes Epitalon valuable for melatonin pathway analysis including AANAT enzyme expression/activity, pCREB phosphorylation status, and melatonin synthesis rate measurements. Clock gene studies investigate Per1/Per2 expression, Bmal1/Clock regulation, circadian gene re-entrainment, and phase shift analysis. Neuroendocrine models examine cortisol/melatonin balance, sleep-wake cycle markers, and age-related circadian decline.

• Epigenetic Research: Chromatin studies assess chromatin accessibility (DNase I hypersensitivity, ATAC-seq), histone modification analysis, and promoter binding investigations. Gene expression research includes transcriptomic profiling of age-related changes, cytokine expression (IL-2 induction focus), and immune function markers. Epitalon enables investigation of epigenetic age reduction through biological age marker modulation.

• Oxidative Stress and Cytoprotection: Antioxidant research applications include reactive oxygen species (ROS) quantification, antioxidant enzyme activity assessment (SOD, catalase), lipid peroxidation marker analysis, DNA damage assessment (8-OHdG), and mitochondrial function evaluation. Neprilysin and IDE enzyme modulation provides neurodegeneration model relevance.

• Longevity and Geroprotection: Model organism studies investigate lifespan extension in invertebrate systems, tumor incidence in aged animal models, biomarker changes with chronic treatment, and tissue-specific aging effects. Epitalon’s classification as a multi-pathway geroprotector targeting five aging hallmarks simultaneously makes it unique for comprehensive aging intervention research.

ANALYTICAL VERIFICATION

BIONIX Epitalon undergoes comprehensive analytical characterization:

• HPLC Analysis: High-Performance Liquid Chromatography with gradient separation confirms ≥99% purity; separates tetrapeptide from synthesis byproducts and degradation products • Mass Spectrometry: Exact molecular weight confirmation (390.35 g/mol) and AEDG sequence verification • Amino Acid Analysis: Ala-Glu-Asp-Gly composition quantification • Endotoxin Testing: LAL assay for cell culture applications • Structural Confirmation: Short-chain polar peptide integrity

Physical Characteristics:

DEVELOPMENT STATUS

• Origin: Synthetic analog of epithalamin, peptide complex isolated from pineal gland (Khavinson research) • Research History: 25+ years of biogerontology investigation; one of most studied aging-research peptides • Clinical Status: Not FDA or EMA approved for therapeutic use; research compound only • Mechanism Classification: Multi-pathway geroprotector (5 aging hallmarks: telomeres, mitochondria, epigenetics, senescence, intercellular communication) • Primary Research: TERT activation, telomere extension, pineal function, epigenetic regulation • Recent Evidence: 2025 comprehensive review confirming five-hallmark targeting; 2025 PMC telomere extension data • WADA Status: Research compound (verify current prohibited list)

BIONIX Epitalon is supplied exclusively for laboratory research purposes—not for therapeutic use, human administration, veterinary, or clinical applications.

FREQUENTLY ENCOUNTERED INQUIRIES

What is Epitalon and what makes it unique?

Epitalon is a synthetic tetrapeptide (Ala-Glu-Asp-Gly/AEDG, 390.35 g/mol) derived from epithalamin—a peptide complex originally isolated from the pineal gland. Its uniqueness lies in being a multi-pathway geroprotector that simultaneously targets five hallmarks of aging: telomere attrition (via TERT activation), mitochondrial dysfunction, epigenetic alterations (chromatin loosening), cellular senescence, and altered intercellular communication. Unlike single-target interventions, Epitalon spans telomerase, melatonin synthesis (AANAT/pCREB), and epigenetic mechanisms—making it a comprehensive research tool for biogerontology studies.

How does Epitalon affect telomerase and telomeres?

Research demonstrates Epitalon induces telomerase activity via hTERT (telomerase reverse transcriptase) upregulation in human cell lines. Dose-dependent telomere extension occurs from 2.4 kb to 4 kb at concentrations of 0.5-1 μg/ml over 4-day treatment periods. This extension occurs through telomerase activation rather than alternative lengthening of telomeres (ALT) pathways. Effects documented in human normal epithelial cells, fibroblasts, and selected cancer cell lines with maintenance of normal cell morphology beyond Hayflick limit.

What is Epitalon’s effect on melatonin synthesis?

Epitalon significantly influences pineal gland function through AANAT (arylalkylamine N-acetyltransferase) enzyme upregulation and pCREB transcription factor activation—enhancing melatonin gene transcription and synthesis. Studies in perifused rat pineal glands demonstrate increased melatonin release with effects more potent and prolonged than other pineal peptides (e.g., Vilon), significant after 3 hours of treatment. This mechanism supports circadian regulation and chronobiology research applications.

Is Epitalon water soluble?

Affirmative. As a short-chain tetrapeptide with acidic residues (glutamic acid, aspartic acid), Epitalon is highly water soluble with isoelectric point ~3.5. It reconstitutes easily in sterile aqueous solutions without requiring organic solvents (DMSO, ethanol)—simplifying cell culture and in vitro applications. No special solubilization procedures needed.

REFERENCES

• PMID: 15349550 — Epitalon and telomerase activity in human somatic cells (Bull Exp Biol Med, 2003)
• PMID: 12109271 — Effect of Epitalon on lifespan and tumor incidence (Exp Gerontol, 2001)
• PMID: 17369818 — Peptide regulation of gene expression and aging (Neuroendocrinol Lett, 2003)
• PMC, 2025 — Overview of Epitalon: Highly bioactive pineal tetrapeptide with multifaceted effects
• PMC, 2025 — Epitalon increases telomere length in human cell lines through telomerase activation
• Khavinson VK et al., 2014 — Peptide regulation of aging (Adv Gerontol)