Buy Epitalon

Sourcing High-Purity Epitalon for Laboratory Research

Researchers looking to buy Epitalon must source from verified domestic peptide suppliers providing lot-specific certificates of analysis. PX1 Research offers high-purity, synthetic Epitalon (>98% pure by RP-HPLC and ESI-MS) manufactured in USA-based, GMP-compliant facilities. Every batch undergoes rigorous identity, purity, and endotoxin screening to ensure baseline consistency for in vitro and preclinical experimental protocols.

Obtaining reliable experimental results in peptide research requires reagents with verified chemical composition and minimal lot-to-lot variability. When investigators order buy Epitalon 10mg vials from PX1 Research, they receive a reference-standard material synthesized via solid-phase peptide synthesis (SPPS) and fully characterized by high-resolution analytical techniques. This eliminates confounding variables caused by residual trifluoroacetate (TFA) salts, synthesis side-products, or biological contamination.

Chemical Structure and Molecular Profile of Epitalon

Epitalon (CAS Registry Number: 307297-39-8) is a synthetic short-chain peptide bioregulator composed of four amino acid residues arranged in the sequence L-alanyl-L-alpha-glutamyl-L-alpha-aspartyl-glycine (Ala-Glu-Asp-Gly or AEDG). Its chemical formula is C16H26N4O9, yielding a nominal molecular mass of approximately 390.35 g/mol.

Originally conceptualized based on natural peptide extracts isolated from the bovine pineal gland (epithalamin), Epitalon represents a targeted synthetic motif designed to interact with chromatin structures and specific nuclear signaling pathways. Due to its short primary sequence and hydrophilic side chains—specifically the carboxylic acid functional groups on the glutamic acid and aspartic acid residues—Epitalon exhibits excellent aqueous solubility in standard laboratory buffers.

As part of our comprehensive catalog of all research peptides, Epitalon is delivered as a sterile, lyophilized white powder engineered for optimal reconstitutive stability and prolonged shelf life under controlled laboratory storage conditions.

Proposed Mechanisms: Telomerase Activation and Gene Expression

The primary focus of empirical inquiry surrounding Epitalon centers on its role as a peptide bioregulator capable of activating telomerase gene expression. Preclinical studies suggest that Epitalon interacts directly or indirectly with promoter regions of the human telomerase reverse transcriptase (hTERT) gene. In human somatic cell cultures, in vitro data indicate that exposure to Epitalon induces an increase in telomerase enzymatic activity, leading to the elongation of telomeric repeats at chromosome terminals.

Telomeres are specialized nucleoprotein complexes that protect chromosome ends from degradation and aberrant recombination. In normal somatic cells, telomeric DNA shortens with successive cell divisions, ultimately triggering replicative senescence or apoptosis. Research models utilizing human fibroblast cultures demonstrate that Epitalon administration promotes heterochromatin unwinding, allowing transcription factors enhanced access to previously silenced promoter regions. This epigenetic modulation is hypothesized to delay cellular senescence markers without inducing tumorigenic transformation.

Additionally, cell-free and cellular binding assays show that Epitalon can cross nuclear membranes and bind directly to specific histone proteins and DNA sequences, modulating gene expression profiles associated with oxidative stress defense, DNA repair pathways, and cellular protein synthesis. Investigators interested in investigating these pathways can review broader literature in our guide on telomerase activation research.

Preclinical Findings in Circadian Rhythm and Melatonin Secretion

Beyond its nuclear and telomeric effects, Epitalon has been extensively evaluated in animal models for its regulatory influence on pineal gland morphofunction and neuroendocrine regulation. In rodent models of accelerated and natural aging, preclinical research demonstrates that long-term administration of Epitalon promotes the normalization of nocturnal melatonin synthesis and secretion patterns.

The pineal gland plays a central role in coordinating circadian rhythms through the cyclical release of melatonin. As animals age, pinealocyte involution and calcification typically lead to a marked decline in peak nighttime melatonin output. In vivo trials involving aging non-human primates and rodent strains show that Epitalon treatment reinstates youth-like circadian hormone profiles, improves carbohydrate metabolism parameters, and reduces markers of systemic lipid peroxidation.

Furthermore, morphological evaluations of pineal tissue in treated animal groups reveal enhanced structural preservation of pinealocytes and preserved ribosomal density. These physiological responses position Epitalon as a key reference compound for studying pineal-dependent neuroendocrine decay and circadian phase restoration in preclinical models. Further biochemical background is detailed in our research library hub.

Comparative Analysis: Epitalon vs. Related Longevity and Bioregulator Peptides

To properly contextualize Epitalon within experimental protocols, researchers frequently evaluate it alongside other short-chain bioregulators and senotherapeutic candidates. Epitalon belongs to the peptide bioregulator class, characterized by ultra-short amino acid motifs (typically 2 to 4 residues) that act via gene-specific transcriptional regulation. This sets it apart from larger synthetic signaling proteins or targeted senolytic molecules.

When designing cellular longevity or anti-senescence experiments, laboratories often compare Epitalon to compounds such as FOXO4-DRI, a senolytic peptide designed to disrupt the FOXO4-p53 complex and induce targeted apoptosis in senescent cells. While FOXO4-DRI works via the selective clearing of damaged cells, Epitalon focuses primarily on telomerase induction and pineal modulation to alter proliferative capacity. Similarly, researchers examine GHK-Cu, a naturally occurring copper-binding tripeptide evaluated for gene remodeling in tissue repair and collagen synthesis, and Thymalin, a thymic bioregulator studied for immunomodulatory and T-cell differentiation effects.

The table below highlights key biochemical distinctions among these research compounds:

Critical Quality Parameters: RP-HPLC, Mass Spectrometry, and Endotoxin Limits

Because small peptide impurities, baseline sequence truncations, or bacterial endotoxins can drastically compromise cellular assays, verifying chemical purity prior to research usage is imperative. When laboratories buy Epitalon from PX1 Research, every production lot is subjected to dual analytical verification via Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) and Electrospray Ionization Mass Spectrometry (ESI-MS).

RP-HPLC chromatography confirms that the target peptide peak accounts for greater than 98% of total integrated area, ensuring freedom from synthesis failure sequences or residual protecting groups. ESI-MS verifies the exact molecular mass (390.35 Da), establishing correct primary chemical identity. In addition, independent ISO 17025 certified laboratories perform Limulus Amebocyte Lysate (LAL) testing to confirm endotoxin concentrations remain strictly below <0.01 EU/mg.

Low endotoxin thresholds are vital for in vitro cell culture experiments, as lipopolysaccharide (LPS) contamination can trigger non-specific toll-like receptor (TLR4) activation, inflammatory cytokine release, and premature cell death—confounding experimental observations regarding telomerase activity or cellular lifespan. Complete data sheets detailing these parameters are accessible via our PX1 quality testing protocols.

Reconstitution Protocols and Reagent Handling in Laboratory Settings

Epitalon is supplied as a sterile lyophilized cake that must be reconstituted using appropriate laboratory solvents under aseptic conditions inside a laminar flow cabinet. Due to the presence of two acidic side chains (Asp and Glu), Epitalon exhibits high polarity and rapid solubility in aqueous media.

Standard laboratory reconstitution protocols involve the addition of Bacteriostatic Water (0.9% benzyl alcohol) or sterile 0.9% Sodium Chloride Injection, USP. For cell culture experiments sensitive to preservative agents, sterile Phosphate-Buffered Saline (PBS, pH 7.4) or sterile nuclease-free water should be utilized. Solvent should be introduced slowly down the inner glass wall of the vial rather than sprayed directly onto the lyophilized powder.

Gentle rotational swirling of the vial will achieve complete dissolution within seconds. Mechanical agitation, vigorous shaking, or vortexing must be avoided to prevent surface-induced aggregation or peptide denaturation. Once reconstituted, stock solutions should be handled using micro-pipettors with filter tips to maintain sterility during aliquot creation.

Storage Stability, Thermal Degradation, and Cold-Chain Shipping

Lyophilized Epitalon possesses robust physical stability when stored under desiccated conditions at -20°C or -80°C, remaining stable for up to 24 months without significant degradation. Upon receipt, unopened lyophilized vials should be immediately transferred to sub-zero freezer units away from frost-free cycle fluctuations.

Reconstituted Epitalon liquid solutions are more susceptible to hydrolytic cleavage and peptide bond degradation over time. Reconstituted stock solutions stored at 2°C to 8°C should be utilized within 14 to 30 days depending on the solvent chosen. For extended experimental timelines, reconstituted stock should be divided into single-use experimental aliquots and frozen at -80°C to minimize thermal freeze-thaw stress.

PX1 Research maintains strict cold-chain logistics protocols. Orders dispatch same-day (Monday through Friday) from centralized fulfillment centers located in California and Arizona, utilizing temperature-monitored packaging to ensure structural integrity throughout transit.

Ordering Epitalon for Institutional and Bulk Research Accounts

Academic institutions, biotechnology enterprises, and clinical research organizations requiring high-volume peptide sourcing can establish dedicated lab accounts with PX1 Research. Bulk purchasing options facilitate consistent lot reservation, allowing multi-phase study protocols to utilize identical peptide synthesis batches over extended timeframes.

Institutional purchasing accounts benefit from prioritized analytical reporting, specialized vial sizing options, and streamlined procurement workflows. To submit institutional purchase orders or request custom synthesis configurations, research directors can explore our wholesale lab account portal.