Epitalon
Evidence: CMitochondrial / Cellular Aging
Key facts
- Research areaMitochondrial / Cellular Aging
- Study records72 human
- Last updated2026-07-26
Evidence Snapshot
Regulatory Context
Epitalon is not an FDA-approved drug. FDA scheduled Epitalon-related bulk drug substances for July 2026 Pharmacy Compounding Advisory Committee review and reported insufficient human safety and effectiveness information.
In Plain English
A quick, research-focused overview. It does not replace, and cannot outrank, the detailed evidence below.
What is it?
Epitalon, also spelled Epithalon, is the synthetic tetrapeptide Ala-Glu-Asp-Gly (AEDG). It is distinct from Epithalamin, a pineal-gland polypeptide extract. Most direct evidence is cell or animal research, and FDA has identified substantial safety and evidence gaps for compounded use.
Why are researchers interested in it?
Cell studies report effects on telomerase, telomere length, chromatin, and gene-expression markers. These observations do not establish longevity benefits in humans and raise unresolved questions about long-term proliferative and cancer-related risk.
What does the evidence look like?
Evidence grade C/D. Evidence types and limitations are separated below.
Biggest things to know
FDA identified potential immunogenicity concerns from aggregation and peptide-related impurities in compounded products.
Research Takeaway
Epitalon, also spelled Epithalon, is the synthetic tetrapeptide Ala-Glu-Asp-Gly (AEDG); it is distinct from Pinealon, which is the tripeptide Glu-Asp-Arg (EDR), and evidence for the two must not be merged.
Evidence boundary: Sequence identity does not establish the marketed composition of any grey-market vial labeled Epitalon.
See all 6 evidence claims →Quick Summary
Epitalon, also spelled Epithalon, is the synthetic tetrapeptide Ala-Glu-Asp-Gly (AEDG). It is distinct from Epithalamin, a pineal-gland polypeptide extract. Most direct evidence is cell or animal research, and FDA has identified substantial safety and evidence gaps for compounded use.
Mechanism & Research Overview
Cell studies report effects on telomerase, telomere length, chromatin, and gene-expression markers. These observations do not establish longevity benefits in humans and raise unresolved questions about long-term proliferative and cancer-related risk.
Mechanism pathway
Relationship-support labels describe the type and directness of the research available, not proof of safety or effectiveness. Indirectly supported, inferred and uncertain relationships are not equivalent to directly supported ones.
- CompoundEpitalon
- Supported indirectly (Indirectly supported relationship)Biological targethTERTEnzyme
- Leads toPathwayOther Defined PathwayTelomerase/telomere-length regulation via hTERT expression is a genome-maintenance mechanism. The current PF01-PF21 taxonomy does not contain a dedicated telomere-maintenance or genome-stability family, so this relationship is placed in PF14 rather than being forced into an ill-fitting existing family.
Relationship details
- Epitalon → hTERT — Supported indirectlyExact Epitalon increased hTERT expression in human cell systems and increased telomerase activity in normal fibroblast/epithelial cells; this is a supported-indirect expression/activity relationship, not evidence of direct Epitalon-hTERT binding, and the response is cell-context dependent.
Evidence Claims
Individual scientific statements drawn from the sources cited below, each shown with the specific evidence boundary that statement does not establish.
Supported
Epitalon, also spelled Epithalon, is the synthetic tetrapeptide Ala-Glu-Asp-Gly (AEDG); it is distinct from Pinealon, which is the tripeptide Glu-Asp-Arg (EDR), and evidence for the two must not be merged.
Does not establish
Evidence boundary: Sequence identity does not establish the marketed composition of any grey-market vial labeled Epitalon.
Sources: Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells
Supported
Cell-culture studies report telomerase activation and telomere elongation after Epitalon exposure, while animal aging studies do not establish a consistent life-span extension effect.
Does not establish
Evidence boundary: Cellular telomere effects and animal biomarkers do not establish human longevity, anti-aging, or disease-prevention efficacy.
Sources: Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells; Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice
Supported
Epitalon is not an FDA-approved drug; FDA has identified substantial safety-information gaps for compounded Epitalon, and a July 2026 advisory-committee recommendation regarding possible 503A-list inclusion does not constitute FDA drug approval.
Does not establish
Evidence boundary: A nonbinding compounding recommendation does not establish safety, effectiveness, marketing approval, or a standardized clinical indication.
Sources: Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks; FDA briefing document for Epitalon-related bulk drug substances; FDA summary of safety risks associated with compounded Epitalon
Supported
FDA states that compounded Epitalon may pose immunogenicity and peptide-impurity risks and that it lacks sufficient safety information for proposed compounded routes.
Does not establish
Evidence boundary: Regulatory uncertainty and limited safety information do not prove a specific adverse-event incidence, but they preclude a claim of established safety.
Sources: Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks
Supported
Limited reports of melatonin-rhythm effects in middle-aged adults do not establish Epitalon as a proven treatment for insomnia, longevity extension, cancer prevention, or generalized anti-aging therapy.
Does not establish
Evidence boundary: Small or historically reported physiological observations are not equivalent to modern pivotal clinical evidence.
Supported
Grey-market or compounded Epitalon products are unapproved and cannot be presumed equivalent to research material; only named-study dosing may appear as Study/Trial Dosing, with no consumer anti-aging or sleep protocol.
Does not establish
Evidence boundary: This does not endorse compounded use or provide a dosing recommendation.
Sources: Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks
Safety & Evidence Limitations
Considerations reported in the sources cited on this page — not a complete list of every possible risk, and not medical advice.
Safety Consideration
FDA identified potential immunogenicity concerns from aggregation and peptide-related impurities in compounded products.Safety Consideration
Telomerase activation is a cell-culture finding, not proof of safe lifespan extension; long-term proliferative and carcinogenic risk remains unresolved.Safety Consideration
Human studies are sparse, old, methodologically limited, and often originate from the same research network.Safety Consideration
Epitalon must remain distinct from Epithalamin, a complex animal-tissue extract.
Research Areas Being Studied
Research areas discussed on this page reflect the Mitochondrial / Cellular Aging category and the sources cited below.
Findings Reported in Studies
Educational summary only — reported in cited studies, not a claim of proven benefit.
Show findings from 2 human studies
- AEDG peptide regulates human circadian rhythms genes expression during pineal gland accelerated aging (2020):
- Pineal-regulating tetrapeptide Epitalon improves eye retina condition in retinitis pigmentosa (2002):
Study Tables by Evidence Type
7 study records
- Human Studies & Clinical Data 2
- Animal / Cell / Preclinical Data 2
- Regulatory Documents & Official Trial Registries 3
Human Studies & Clinical Data(2)
AEDG peptide regulates human circadian rhythms genes expression during pineal gland accelerated aging
2020PMID 33280326
- Population / Model
- Middle-aged adults with reduced pineal melatonin function (accelerated pineal-aging / night-shift-work model)
- Dose / Duration / Finding
AEDG peptide administration was associated with a 1.7-fold increase in urinary 6-sulfatoxymelatonin excretion and normalization of circadian gene expression (Clock, Csnk1e, Cry2) in middle-aged adults with reduced pineal melatonin function.
Safety note
Single study from the same research network as most Epitalon literature; not independently replicated. Reports mechanistic/biomarker endpoints (urinary melatonin metabolite, circadian gene expression), not pivotal clinical efficacy data. Studied population is middle-aged adults with an accelerated-pineal-aging/shift-work model, not elderly. Does not demonstrate proven treatment for insomnia, longevity extension, cancer prevention, or generalized anti-aging.
Pineal-regulating tetrapeptide Epitalon improves eye retina condition in retinitis pigmentosa
2002PMID 12195242
- Population / Model
- Patients with degenerative retinal lesions plus animal retinal models
- Dose / Duration / Finding
The article reports a positive clinical effect in a treated patient series and parallel animal findings, but the available abstract does not provide modern trial-design detail sufficient for confirmatory conclusions.
Safety note
Older mixed human/animal report with limited methodological detail and uncertain independent replication.
Animal / Cell / Preclinical Data(2)
Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice
2003PMID 14501183
- Population / Model
- Female Swiss-derived SHR mice
- Dose / Duration / Finding
Epitalon did not change mean life span in this mouse experiment, although selected biomarkers and tumor outcomes were reported.
Safety note
Single animal study; mixed outcomes and limited generalizability.
Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells
2003PMID 12937682 · DOI 10.1023/A:1025493705728
- Population / Model
- Cultured human somatic cells
- Dose / Duration / Finding
Epithalon (Ala-Glu-Asp-Gly) was reported to reactivate catalytic-subunit (hTERT) telomerase gene expression, increase telomerase activity, and induce telomere elongation in cultured human fetal fibroblasts that were telomerase-negative at baseline. No direct physical Epithalon-hTERT or Epithalon-telomerase binding assay was performed in this study; the evidence is expression- and activity-level only. This is a historical primary source from the original Khavinson research lineage and, by itself, is not independent replication. A separate 2025 study by Al-Dulaimi, Thomas, Matta, and Roberts (PMID 40908429) provides modern independent replication from a different research group. Preclinical, cell-culture evidence only; it does not establish human longevity or anti-aging efficacy.
Show full finding
Safety note
Cell-culture evidence does not establish human longevity effects or safety.
Regulatory Documents & Official Trial Registries(3)
Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks
2026- Population / Model
- Dose / Duration / Finding
FDA states that compounded Kisspeptin-10 may pose immunogenicity and peptide-characterization risks and that safety information for proposed routes is absent or limited. The same FDA page separately flags Epitalon and emideltide/DSIP for substantial safety-information gaps in compounded use.
Show full finding
FDA summary of safety risks associated with compounded Epitalon
2026- Population / Model
- FDA compounding safety-risk summary
- Dose / Duration / Finding
FDA states that compounded Epitalon may pose immunogenicity risk from aggregation or peptide-related impurities and that sufficient route-specific human safety information has not been identified.
Safety note
Official safety context; not a completed clinical trial.
Anecdotal Reported Patterns — Not Medical Advice
Anecdotal Reported Patterns — Not Medical Advice
Reported dosing patterns are included for educational context only. They are self-reported, unverified, not medical advice, and not instructions for human use. Community-submitted patterns are not yet available in this Phase 1 prototype; this section is a placeholder reserved for moderated, aggregated community data.
Lab Markers to Discuss With a Clinician
Educational topics only — not self-monitoring instructions.
FAQ
Disclaimer
Educational information only. This page summarizes published and official research and does not provide medical advice, a recommendation, or instructions for human use.
Educational use only. This content is provided for informational and research-summary purposes only. It is not medical advice, not a treatment recommendation, not a dosing guide, and not a substitute for care from a licensed medical professional. Nothing here is intended to diagnose, treat, cure, prevent, or mitigate disease. Reported dosing patterns, when shown elsewhere on the site, must be labeled either as Study / Trial Dosing or Anecdotal Reported Patterns — Not Medical Advice. Community reports are self-reported, unverified, and not scientific proof.
Community-reported experiences, once enabled, must be displayed only as moderated, anonymized, or aggregated data. They are anecdotal, self-reported, unverified, and should never be presented as proof of safety, efficacy, or expected results.
Content status: Published. Last updated 2026-07-26.
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