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Hedi Raizer

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Epithalon (Epitalon): sourcing, documentation and price

Epithalon (Epitalon) is a synthetic tetrapeptide supplied for laboratory research. This page covers its identifiers, the mechanisms studied, and how documentation and price are assessed for research supply.

peptides-pro Editorial

Epithalon, also written Epitalon or Epithalone, is a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Gly (AEDG) [6]. It is classed as a short bioactive peptide and was synthesised based on the amino acid composition of Epithalamin, a bovine pineal gland extract, before being identified in pineal gland polypeptide complex solution [6]. The evidence block for this page does not supply a CAS number, molecular formula or molecular weight, so none are stated here. Where the literature gives a sequence, it is AEDG [6][7].

The work on this compound centres on telomerase and telomere maintenance, specifically the upregulation of human telomerase reverse transcriptase (hTERT) and, in some cell models, activation of the alternative lengthening of telomeres (ALT) pathway [4][5][8].

Research Studies

Epithalon and telomere length in human cell lines

Epitalon has been studied in human cell lines for its effect on telomere length. The reported mechanism is induction of telomerase enzyme activity, leading to extension of telomere length, with a second route through ALT activity [4][5]. The authors note that quantitative data on the biomolecular pathway leading to telomere length increase, hTERT mRNA expression, telomerase enzyme activity and ALT activation had not been extensive [4][5]. This is in vitro work in human cell lines; it is not a clinical finding.

Epithalon and hTERT upregulation in preclinical models

Current preclinical evidence suggests that Epitalon may activate telomerase by upregulating hTERT [8]. That statement is drawn from a review of preclinical work, and the same review reports that in aged primates Epitalon has been examined [8]. The evidence block does not give the primate outcome in detail, so no effect size or direction is asserted here beyond what is quoted.

Epithalon and geroprotective effects in mammalian cells

Epitalon is described in the literature as a naturally occurring tetrapeptide known for anti-aging effects on mammalian cells, operating through induction of telomerase enzyme activity and telomere extension [4][5]. The compound has been studied over roughly 25 years using in vitro, in vivo and in silico methods, with results indicating geroprotective and neuroendocrine effects attributed to antioxidant, neuroprotective and antimutagenic activity, arising from both specific and nonspecific mechanisms [6]. These are described as effects observed in the models used, not as outcomes established in humans.

Epithalon and the pineal tetrapeptide literature

Epitalon was synthesised from the amino acid composition of Epithalamin, a bovine pineal gland extract, prior to its discovery in pineal gland polypeptide complex solution [6]. A separate review states that Epitalon and Epithalamin are historically related but chemically distinct, and that their evidence should not be considered interchangeable [7]. That distinction matters when reading older papers that use the two names loosely.

Epithalon and therapeutic peptide framing in gerontology

Peptide therapeutics are described as an emerging frontier in gerontological medicine, targeting hallmarks of aging that include metabolic dysfunction, telomere attrition, tissue repair impairment and hormonal decline [2]. A narrative review covering mechanisms, clinical applications, evidence base and safety profiles of peptides with demonstrated or potential applications in healthy aging was conducted through searches of PubMed, Scopus and regulatory databases from inception through January 2026 [2]. Epitalon sits within that broader class discussion rather than being the subject of a dedicated clinical programme in the evidence supplied here.

Epithalon and delayed wound healing in a diabetic retinopathy model

In an in vitro model of diabetic retinopathy, the antioxidant tetrapeptide Epitalon was tested for its effect on delayed wound healing [10]. Diabetic retinopathy is described as the most common complication of diabetes mellitus and a leading cause of vision loss, and short peptides including di-, tri- and tetrapeptides are noted for antioxidant, antimicrobial and anti-inflammatory activities [10]. This is an in vitro model; no human wound-healing claim follows from it.

Epithalon and peptide signalling in orthopaedic research

Therapeutic peptides are described as emerging adjuncts in orthopaedic injury research, acting on pathways such as PI3K/Akt, mTOR, MAPK, TGF-β and AMPK to influence tissue regeneration [9]. Epitalon is not the focus of that review; it is cited here only to place short peptides within a signalling-modulation framework. No orthopaedic finding specific to Epitalon is claimed.

Epithalon and cellular senescence markers in resistant models

A study in natural killer/T-cell lymphoma established multidrug-resistant models using adriamycin and confirmed cellular senescence by markers including P16, P21 and senescence-associated β-galactosidase [1]. Proteomic sequencing of plasma from clinical patients and resistant cells identified LCP2 as a key protein, and phosphoproteomics, mass spectrometry and co-immunoprecipitation were used to characterise the interaction [1]. This work concerns LCP2 and chemoresistance in NKTCL; it does not test Epitalon, and it is included only as an example of senescence-marker methodology in the wider literature.

Comparison of evidence tiers for Epithalon

Evidence tierWhat the supplied sources reportSource
In vitro, human cell linesTelomere length increase via telomerase induction or ALT activity; hTERT mRNA and enzyme activity quantified[4][5]
Preclinical reviewTelomerase activation proposed via hTERT upregulation; aged primate work noted[8]
In vitro, diabetic retinopathy modelAntioxidant tetrapeptide tested in a delayed wound-healing model[10]
Narrative review, peptide classGerontological peptide mechanisms, applications and safety profiles reviewed[2]
Compound overviewGeroprotective and neuroendocrine effects reported across in vitro, in vivo and in silico methods[6]

Epithalon sourcing and documentation

For laboratory supply, the identifiers that matter are the sequence and the name variants. The literature uses Epitalon, Epithalon and Epithalone interchangeably for the same AEDG tetrapeptide [6]. A supplier's documentation should state the sequence explicitly, because Epitalon and Epithalamin are chemically distinct preparations and their evidence is not interchangeable [7]. Purity, counter-ion form and lot-specific analytical data are the usual components of a research-use certificate of analysis; the evidence block for this page does not provide catalogue-specific values, so none are quoted.

Epithalon price and how it is assessed

Price for a research peptide is normally a function of batch size, purity grade and the analytical documentation supplied with the lot. The evidence block contains no pricing data, no purity figures and no vendor comparisons, so no price is stated on this page. Buyers evaluating quotes should compare like-for-like on sequence confirmation, purity specification and the analytical methods reported for the lot in question.

If you are reading this for personal health reasons

This material is sold for laboratory research only. We do not provide dosing, administration or medical guidance of any kind. Anyone considering a compound for themselves should speak to a licensed clinician.

Sources

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