Public educational draft · 04 November 2026Clinical review pending →
Epitalon / Epithalon reference card with source-verified molecular imagery and original research-informed diagrams. Evidence levels and limitations are marked; full citations accompany the card on the website.

Visual summary only. The research findings, limitations and references accompany the card on this page.

The molecular view uses a source-provided computational conformer, not an experimental or unique bioactive geometry. The biological setting is an illustration. Original study diagrams summarize cited research without reproducing publication artwork or inventing quantitative results.

PubChem computational conformer (3D SDF) · Download visual source SDF

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Mitochondrial / longevity

Epitalon / Epithalon

Telomerase / telomere laboratory endpoints

All-L Ala-Glu-Asp-Gly reference peptide, free termini
Molecular formula
C14H22N4O9
Molecular weight
390.35 g/mol
Class
Tetrapeptide
Identity
AEDG

Research snapshot

Epithalon is a synthetic tetrapeptide studied in cellular-aging models. Selected experiments reported telomerase-related changes in cultured fetal fibroblasts, which must remain distinct from evidence about human longevity.

Human fibroblast cultures

Identity & representation

Literature reference molecule. Catalog naming is not analytical confirmation of AXON contents, salt, purity or formulation. Ala-Glu-Asp-Gly; also Epitalon. Distinct from Epithalamin, a pineal tissue-extract preparation.

Educational reference only. Not a dosing guide, treatment recommendation or product endorsement.

Ala–Glu–Asp–Gly · all-L tetrapeptide · free termini[3]

View the chemical structure →

Sources checked: 2026-11-06. Identity and evidence limits are stated above. Independent specialist review is pending.

ClassTetrapeptide

Target / pathwayTelomerase / telomere laboratory endpoints

Selected evidenceHuman fibroblast cultures

ScopeResearch summary; not a product or treatment assessment

What researchers study

Epithalon is a synthetic tetrapeptide studied in cellular-aging models. Selected experiments reported telomerase-related changes in cultured fetal fibroblasts, which must remain distinct from evidence about human longevity.

  • Telomerase catalytic-subunit expression in cultured fibroblasts

  • Telomere-length measurements during replicative cell aging

  • Cell proliferative capacity under controlled culture conditions

Mechanism in context

  1. Expose cultured fetal fibroblasts to AEDG
  2. Measure telomerase activity and telomere length
  3. Track proliferative capacity within the culture model

Telomere-related measurements are laboratory endpoints, not proof of longer life, rejuvenation or improved health in humans.

Simplified publication-grounded schematic, not a solved protein structure or proof of clinical benefit.

Selected evidence

Selected evidence is preclinical or laboratory-based; human-derived cells are not a human clinical trial.

Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells.[1]

In vitro mechanistic experiment · Human fetal fibroblast cultures · Cell-culture study

Observed: Investigators reported telomerase activity and telomere elongation after Epithalon exposure.

Limit: Human-derived cells are not a clinical trial; lifespan and health outcomes in people were not tested.

Peptide promotes overcoming of the division limit in human somatic cell.[2]

In vitro proliferative-capacity experiment · Human fetal pulmonary fibroblasts · Serial culture passages

Observed: Treated cultures continued dividing beyond control cultures under the reported conditions.

Limit: Culture-passage extension is not demonstrated organismal longevity or safe telomerase manipulation.

Reference identity in detail

Sequences and form distinctions describe the cited reference substance, not a verified supplier preparation.

Read the sequence and form notes
Sequence
AEDG
Sequence notes
Ala-Glu-Asp-Gly; also Epitalon. Distinct from Epithalamin, a pineal tissue-extract preparation.
Molecular formula
C14H22N4O9
Molecular weight (g/mol)
390.35

Safety & evidence limits

  • Do not describe telomerase activation in cultured cells as proven human lifespan extension or clinical rejuvenation.

  • Epithalamin extract and Epithalon tetrapeptide are different materials; evidence cannot be transferred without verification.

  • These laboratory studies do not establish long-term human safety or the consequences of sustained telomerase-related changes.

Practical identity notes

  • Ala-Glu-Asp-Gly; also Epitalon. Distinct from Epithalamin, a pineal tissue-extract preparation.
  • Formula and mass apply only to the named reference form, excluding unspecified counterions, solvent and water.
  • Educational molecular reference • Selected studies, not a systematic review • No dosing guidance

The 10-second takeaway

A four-residue peptide with telomere-related cell-culture findings; human longevity and rejuvenation benefits are not established by those experiments.

What the visual panels show

Original diagrams summarize the cited research or documented evidence search. They are not copied publication figures or claims of treatment benefit.

  • EXPERIMENT → CELL READOUT[1][2]

    Publication-grounded mechanism schematic · Original publication-grounded diagram

    Expose fetal fibroblast cultures to AEDG · Measure telomerase activity and telomere length · Track division capacity through serial passages

    Interpretation: Cell-culture endpoints do not establish human longevity.

  • Telomerase activity[1]

    CELL-CULTURE STUDY · Original publication-grounded diagram

    Telomerase activity reported after peptide exposure

    Human fetal fibroblast cultures, not clinical participants.

    Interpretation: No receptor target is established; no human rejuvenation icon or efficacy inference.

  • Telomere measurement[1]

    SAME CELL STUDY · Original publication-grounded diagram

    Telomere elongation reported in cultured cells

    Laboratory endpoint; lifespan was not measured in people.

    Interpretation: Use a schematic chromosome end only. Do not fabricate microscopy, lengths or trends.

  • Serial culture passages[2]

    CELL-CULTURE STUDY · Original publication-grounded diagram

    Treated cultures continued dividing beyond controls

    Fetal pulmonary fibroblasts; model-specific proliferative capacity.

    Interpretation: Culture-passage extension is not organismal lifespan extension or evidence of safe telomerase activation.

Follow the evidence

Sources & what they support

  1. Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells.

    Bull Exp Biol Med · 2003 · PMID: 12937682 · DOI: 10.1023/a:1025493705728

    Supports: Telomerase and telomere cell-culture findings

  2. Peptide promotes overcoming of the division limit in human somatic cell.

    Bull Exp Biol Med · 2004 · PMID: 15455129 · DOI: 10.1023/b:bebm.0000038164.49947.8c

    Supports: Sequence and proliferative-capacity experiment

  3. PubChem CID 219042

    Supports: Reference chemical graph, formula and molecular mass; not product identity

    Original structure record · Download source SDF

    Original PubChem 2D source structure record.

Source-linked educational drafts. Scientific and clinical review is pending. These cards describe molecules and study context, not product quality, approval or treatment recommendations.

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