Epitalon
Reviewed
Short answer
A four-amino-acid peptide promoted for sleep and longevity. Its evidence has identity-transfer problems and no established insomnia or lifespan outcome evidence. No FDA-approved epitalon drug product.
The Peptide Field explains research. Its pages are not independently medically reviewed, and they do not diagnose, prescribe, or recommend treatment.
Read the study findingsAlso known as Epithalon · AEDG · epitalon acetate
Part of Anti-aging and longevity peptides
Legal status Is Epitalon legal? See the status table
Study and product details
What it is
Epitalon is a four-amino-acid peptide: Ala-Glu-Asp-Gly. It is often discussed with epithalamin, a pineal preparation, but they are not the same intervention.
Type of peptide: Synthetic tetrapeptide. This describes what the substance is or how it works. It does not show that it is safe, effective, or approved.
What has been studied?
- Unclear: There is not enough reliable detail about the product or research to judge.
- Limited: Research is too small or incomplete, or does not directly answer this question.
FDA found no studies establishing insomnia outcomes for the nominated epitalon substances and route.
Melatonin and cell-line findings are indirect and do not establish patient benefit.
Human product, route, exposure, impurity, and long-term safety data are inadequate.
Evidence often mixes epitalon, epitalon acetate, and non-identical pineal preparations.
Products with the same ingredient can differ.
The ingredient name does not tell you everything about a product. Check its other ingredients, its form, how it enters the body, and the use and people covered by the research or approval.
None identified in the United States.
- No FDA-approved indication
Have a lab test report (COA) for a product sold under this name? Check what the report shows in 10 questions
Not sure if a product sold under this name is a prescription, compounded, or research-only vial? Sort it in 5 questions
What studies found
Laboratory work has reported telomere-related effects in human cell lines. Telomeres are protective ends of chromosomes. FDA's current review found melatonin-related information but no clinical insomnia studies using the nominated substances by the proposed route.
Changes in cells grown in a laboratory do not establish slower aging, longer life, cancer prevention, or improved health in people. Evidence from epithalamin cannot be reassigned to epitalon.
Which products do these findings apply to?
Similar names do not mean that products have the same evidence. Epitalon, epitalon acetate, and older pineal extracts such as epithalamin are not automatically interchangeable evidence objects.
Epitalon side effects and safety: what FDA has said
This page has no trial or drug-label side-effect table for Epitalon. FDA keeps a page of bulk substances that may be risky when a pharmacy mixes (compounds) them. Here is what that page says about Epitalon, in plain words.
FDA's page does not name specific side effects for Epitalon.
- FDA found no safety information for the way it was proposed to be given. It says it cannot tell whether epitalon would harm people.
- The body's immune system may react against it. FDA says this risk depends on how it is given.
- The peptide may clump together, which adds to that risk.
- Making it may leave unwanted peptide by-products in the product.
These points come from FDA's review of compounded drugs. They are not a full list of side effects. Having no reports does not mean a product is safe.
Read FDA's exact words
Epitalon: “Compounded drugs containing epitalon may pose risk for immunogenicity for certain routes of administration due to the potential for aggregation and peptide-related impurities. FDA has not identified safety-related information regarding epitalon for the proposed route of administration. Therefore, the agency lacks sufficient information to know whether the drug would cause harm if administered to humans.”
Source: FDA, Certain bulk drug substances for use in compounding that may present significant safety risks , page dated .
Compare side-effect data across peptides
Report a side effect
You can report a suspected side effect to the FDA at 1-800-FDA-1088 or through FDA MedWatch . If a reaction feels serious, get medical care first.
FDA page checked .
Fact checks
3 statements checked. Read what the results mean.
“Epitalon changes telomere biology in human cell lines.”
A 2025 laboratory study reported telomere-length effects in cultured human cell lines.
- What this answer is based on
- Cell, animal, or other lab research
- Limits of this answer
- Cultured cell lines, not health outcomes in treated people.
Sources for this fact check (1)
“Epitalon is proven to treat insomnia.”
FDA did not identify clinical insomnia studies of the nominated epitalon substances by the proposed route.
- What this answer is based on
- No reliable studies showing this health result in people
- Limits of this answer
- Adults with insomnia assessed using clinical sleep outcomes.
Sources for this fact check (1)
“Epitalon has been proven to extend human lifespan.”
The evidence does not provide reliable product-specific randomized lifespan outcomes for epitalon.
- What this answer is based on
- No reliable studies showing this health result in people
- Limits of this answer
- Human lifespan and healthspan outcomes attributable to epitalon.
Sources for this fact check (1)
Questions people ask about Epitalon
FDA's page on risky compounding substances says this about Epitalon. It does not name specific side effects for Epitalon. FDA found no safety information for the way it was proposed to be given. It says it cannot tell whether epitalon would harm people. The body's immune system may react against it. FDA says this risk depends on how it is given. The peptide may clump together, which adds to that risk. Making it may leave unwanted peptide by-products in the product. These points come from FDA's review of compounded drugs. They are not a full list of side effects.
Risks and safety limits
A claim about longer life needs long-term results in people, not only laboratory mechanisms. This guide provides no injectable, sleep-treatment, or anti-aging regimen.
This editorial review did not determine sport eligibility. Athletes must check the current prohibited list, Global DRO, and their governing body.
Reviewed .Check the rules for athletes ↗Terms used in the studies
- peptide
- a short chain of amino acids
- outcome
- what the study measured
- route
- how the product enters the body
- preclinical
- research in cells, tissues, or animals before or outside testing in people
- mechanism
- how a substance may cause a body change
- biomarker
- a body or lab measurement, not automatically a health benefit
- randomized
- assigned to study groups by chance
- amino acid
- a small building block that makes peptides and proteins
Read the sources
Show 3 sources
Review history
Initial brief reflects FDA's July 2026 insomnia-focused evidence review before final agency action.
Not independently medically reviewed. This page is not a dosing, sourcing, or treatment guide.
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