Epitalon (Epithalon): Dosage, Side Effects and Legality

Epitalon, often spelled epithalon, is used as a longevity compound mainly because of one idea: that it lengthens telomeres, the protective caps on the ends of chromosomes.

That idea has real research behind it: telomere work in cultured human cells, and lifelong mouse studies with some intriguing results. What it doesn’t have yet is a randomised trial in people.

Dosing: what the evidence actually contains.

Does Epitalon lengthen telomeres?

The result most often cited reports that Epitalon increases telomere length in human cell lines Al-Dulaimi 2025 - Al-Dulaimi S, Thomas R, Matta S et al. Epitalon increases telomere length in human cell lines through telomerase upregulation or ALT activity. Biogerontology. 2025;26(5):178., in the references below. A recent overview covers its proposed biological activity more broadly Araj 2025 - Araj SK, Brzezik J, Mądra-Gackowska K et al. Overview of Epitalon-Highly Bioactive Pineal Tetrapeptide with Promising Properties. Int J Mol Sci. 2025;26(6)., in the references below.

Are longer telomeres good for you?

Even if the mechanism holds, there is an earlier question: is longer telomere length good for you?

The link between telomere length and health is contested. Telomere shortening is associated with ageing, but lengthening telomeres hasn’t been shown to benefit health, and the biology makes “longer is better” an unsafe assumption.

So the chain runs: a lab measurement, in cells, of a marker whose link to health is unresolved. Each step is plausible, and each still needs testing before it says anything about people.

Epitalon structure

Molecular formula

C₁₄H₂₂N₄O₉

Molecular weight

390.35 g/mol

Length

4 amino acids

Sequence

AEDG

Modifications

Ala-Glu-Asp-Gly; free N- and C-termini.

PubChem CID

219042

Epitalon is the synthetic tetrapeptide; Epithalamin, sometimes used as a synonym, is the older crude pineal-gland extract it was modelled on.

Identity checked against Fedoreyeva et al., Biochemistry (Mosc) 2011.

Epitalon benefits: what the research shows

• Records mentioning humansof 142 total
  41
• Russian-language records
  55
• Tagged as a clinical trial
  1
• Randomised controlled trials
  0

Counted August 2026. 142 records in total. One is tagged as a clinical trial and none as a randomised controlled trial - the thinnest clinical base of any compound on this site.

Epitalon comes from the same Russian peptide-bioregulator programme that produced Semax and Selank Khavinson 2002 - Khavinson VKh. Peptides and Ageing. Neuro Endocrinol Lett. 2002;23 Suppl 3:11-144., in the references below. Research published in Russian is still research, but it hasn’t been independently replicated outside that tradition, and it is hard to check. The Semax and Selank page covers this in more detail.

The interest comes from the animal work:

• Lifelong mouse study. Female mice were injected five days a month from three months of age until natural death. Mean lifespan didn’t change, but the longest-lived tenth of treated mice lived 13.3% longer and maximum lifespan rose by 12.3%. Chromosome damage in bone marrow fell, and leukaemia was six times less frequent than in controls Anisimov 2003 - Anisimov VN, Khavinson VKh, Popovich IG et al. Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice. Biogerontology. 2003;4(4):193-202., in the references below.
• Tumour study. A separate mouse study reported fewer mice with malignant tumours, and no spread to other organs (metastases), in the treated group Kossoy 2006 - Kossoy G, Anisimov VN, Ben-Hur H et al. Effect of the synthetic pineal peptide epitalon on spontaneous carcinogenesis in female C3H/He mice. In Vivo. 2006;20(2):253-7., in the references below.

The limit: there is very little clinical work even within that tradition. There is one tagged clinical trial, nothing randomised, and the lifespan and tumour findings are in mice.

How epitalon compares with other peptides sold for sleep: peptides for sleep.

Epitalon dosage

No completed randomised trial sets a dose. Clinic and vendor guides commonly describe 5-10 mg injected under the skin once a night, for a 10-20 day cycle with a 4-6 month break between courses. That is common practice, not a tested dose. I haven’t taken numbers from the Russian-language literature, which I can’t properly appraise. See the full dosage page for the sourcing.

Epitalon side effects

There is no published human safety study of Epitalon, so no side-effect rate, common or rare, has been measured in people. The animal work is reassuring as far as it goes:

• In a 2003 study, female mice injected for five days every month from 3 months of age until natural death (54 per group) showed no change in food intake or body weight. The authors wrote that the data suggest long-term use is safe in mice Anisimov 2003 - Anisimov VN, Khavinson VKh, Popovich IG et al. Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice. Biogerontology. 2003;4(4):193-202., in the references below.
• A 2006 study found no toxic effects in one-year-old female mice injected five times a week for 6.5 months Kossoy 2006 - Kossoy G, Anisimov VN, Ben-Hur H et al. Effect of the synthetic pineal peptide epitalon on spontaneous carcinogenesis in female C3H/He mice. In Vivo. 2006;20(2):253-7., in the references below.

Both used microgram doses in mice, and neither is a human safety record.

The human reports come from the developers’ own research tradition. A 2002 report by the developers said Epitalon had a positive clinical effect in 90% of patients with degenerative retinal disease. The abstract gives no patient numbers, no comparison group and no side-effect data Khavinson 2002 - Khavinson V, Razumovsky M, Trofimova S et al. Pineal-regulating tetrapeptide epitalon improves eye retina condition in retinitis pigmentosa. Neuro Endocrinol Lett. 2002;23(4):365-8., in the references below.

Epitalon is sold through unregulated research-chemical channels, so no regulator checks that a vial matches its label. Because it is injected, see peptide injection-site reactions for what to watch for at the site; that is a general risk of injection, not specific to Epitalon. The dosage page covers what would need to exist before a safe dose could be stated.

Is Epitalon legal?

Epitalon is not approved for human use and is sold as a research chemical. No regulator checks that a vial matches its label. A third-party COA covers one batch’s identity and purity, not your vial or its sterility.

In July 2026 FDA’s Pharmacy Compounding Advisory Committee voted to recommend adding Epitalon to the list of substances pharmacies may compound from, as ABC News reported. That is a recommendation to FDA, not a decision, and it would not make Epitalon an approved drug.

Regulatory changes for this compound and others, as they happen: US peptide regulation tracker.

How Epitalon compares

Bioregulators. Doses for unapproved compounds are common practice, not trial-established. All bioregulators peptides →

Compound	Main use	Evidence	Usual dose	US status
Epitalon	Sold for longevity and anti-aging on the basis of telomere research.	Animal / lab only	5-10 mg, once nightly, every night, for the length of the cycle	Research use only
Pinealon	Sold for cognition, focus and healthy aging.	Limited human data	1-2 mg, once daily, morning preferred; some protocols run 5 days a week rather than every day	Research use only
Cartalax	Marketed for cartilage and joint support, sold as a "cartilage bioregulator" for age-related joint wear.	Animal / lab only	200 mcg, once daily	Research use only
Testagen	Marketed for testosterone and reproductive-system support, sold as a "testes bioregulator."	Animal / lab only	10-20 mg, once daily by mouth	Research use only
Vilon	Marketed as a thymus and immune-system bioregulator, sold for immune support and healthy ageing.	Animal / lab only	10-20 mg, once daily by mouth	Research use only
Vesugen	Marketed as a vascular-tissue bioregulator for cardiovascular and blood-vessel aging; more recent papers from the same research group also study it as a candidate for age-related cognitive decline.	Limited human data	500-5000 mcg, once daily, subcutaneous, commonly started low and titrated upward over the first 1-3 weeks	Research use only
Cardiogen	Marketed as a heart-tissue bioregulator for cardiovascular aging, from the Khavinson organ-specific peptide programme.	Animal / lab only	200-2000 mcg, once daily, subcutaneous, most commonly cited around 1 mg/day	Research use only
Prostamax	Marketed as a prostate-tissue bioregulator for age-related prostate change, from the Khavinson organ-specific peptide programme.	Animal / lab only	750-2000 mcg, once daily, subcutaneous, often started lower and increased after 1-4 weeks	Research use only

Where to buy Epitalon for research

Each vendor is checked against my vendor checklist.

1. 1.Next Level PharmFeatured

   50 mg vial

   • No FDA warning letter found
   • Names its testing lab
   • Batch COAs published
   • Takes card payment

   $96.99as of 3 October 2026

   View product →My Next Level Pharm review

2. 2.Spartan Peptides

   25 mg vial

   • No FDA warning letter found
   • Names its testing lab

   $199.00as of 3 October 2026

   View product →My Spartan Peptides review

3. 3.BioEdge Research Labs

   N-acetyl Epithalon amidate 10 mg vial

   • No FDA warning letter found
   • Names its testing lab
   • Batch COAs published

   $44.00as of 3 October 2026

   View product →My BioEdge Research Labs review

Compare every checked vendor for Epitalon →

See all vendors and how they compare →

Common questions

What is Epitalon?

Epitalon, also spelled epithalon, is a synthetic four-amino-acid peptide developed in Russia as part of a peptide-bioregulator research programme. It is marketed internationally as a longevity or anti-ageing compound.

Is longer telomere length actually good for you?

That is less settled than the marketing suggests. Telomere length is linked to ageing in complex and contested ways, and lengthening telomeres is not an established health benefit. "It lengthens telomeres" is a mechanism claim that hasn't been connected to an outcome.

Is there any clinical evidence for Epitalon?

Very little. PubMed returns 142 records: one is tagged as a clinical trial and none as a randomised controlled trial. Much of the literature is in Russian, comes from one research tradition, and hasn't been independently replicated.

What is the usual Epitalon dose?

No published human trial reports a dose. Clinic and vendor guides most often describe 5-10 mg injected under the skin once a night, for a 10-20 day cycle with a 4-6 month break. That is common practice, not a tested dose. See the [full dosage page](/epitalon-dosage/) for the sourcing.

What are the side effects of Epitalon?

There is no published human safety study, so no side-effect rate has been measured. Two long-term mouse studies found no toxic effects, which isn't a human safety record. See the [side effects section](#epitalon-side-effects) for what is known, including injection-site risk.

Does Epitalon make you look younger?

I found no human study of its effect on skin or appearance. Its anti-ageing reputation rests on telomere lengthening in cultured human cells and on animal lifespan work, and longer telomeres are not an established health benefit in people. See [the telomere section](#does-epitalon-lengthen-telomeres) for how far that evidence reaches.

How long does it take for Epithalon to work?

No trial has measured how long it takes to have any effect in people, so there is no evidence-based timeline. The common protocol is nightly injections for 10-20 days, then a 4-6 month break. That describes how it is used, not when anything changes. See the [dosage section](#epitalon-dosage).

Does Epithalon make you tired?

I found no human study reporting tiredness or drowsiness from Epitalon. Animal results on melatonin conflict: it raised evening melatonin in ageing monkeys but didn't change melatonin release from rat pineal glands in the lab. Common protocols dose it before bed, but that is a timing habit, not evidence that it causes sleepiness.

Where can I buy Epitalon peptide online?

Epitalon is not approved for human use and is not on the 503A Bulks List that US compounding pharmacies draw from, so there is no prescription or pharmacy route. It is sold online only as a research chemical labelled not for human use. The [where to buy section](#where-to-buy) lists research vendors I have reviewed, which is not a recommendation to take it. Check any seller against my [vendor checklist](/peptide-vendor-checklist/) first.

How safe is Epitalon?

Its safety in people is unknown. No published human safety study exists, and the reassuring data come from mice given microgram doses. It is sold through unregulated research-chemical channels, so no regulator checks that a vial matches its label. See [Epitalon side effects](#epitalon-side-effects) for what is known.

What well-known people have said about Epitalon

Public statements, shown because people search for them. Each is one person's account, in their words or a faithful summary, with where and when they said it. None of it is evidence that Epitalon works or is safe; that is what the rest of this page is for.

• 

  Ben Greenfieldfitness author and podcasterSaid they use it

  Greenfield wrote that he personally uses the 'Khavinson Protocol' for dosing epitalon (epithalon).

  “I personally use the “Khavinson Protocol” for dosing epithalon”

  Ben Greenfield's own website (article), 17 September 2024. Source: Ben Greenfield Life

  Photo: TAterPARsOLI, CC BY-SA 4.0, via Wikimedia Commons

References (7 sources)

Show

Bibliographic detail is fetched from PubMed, not written by me - so a citation here cannot drift from the paper it names. Study design comes from PubMed's own tags rather than my judgement.

1. 1.Al-Dulaimi S, Thomas R, Matta S et al. Epitalon increases telomere length in human cell lines through telomerase upregulation or ALT activity. Biogerontology. 2025;26(5):178.StudyPMID 40908429full text
2. 2.Araj SK, Brzezik J, Mądra-Gackowska K et al. Overview of Epitalon-Highly Bioactive Pineal Tetrapeptide with Promising Properties. Int J Mol Sci. 2025;26(6).ReviewPMID 40141333full text
3. 3.Khavinson VKh. Peptides and Ageing. Neuro Endocrinol Lett. 2002;23 Suppl 3:11-144.ReviewPMID 12374906
4. 4.Anisimov VN, Khavinson VKh, Popovich IG et al. Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice. Biogerontology. 2003;4(4):193-202.StudyPMID 14501183
5. 5.Kossoy G, Anisimov VN, Ben-Hur H et al. Effect of the synthetic pineal peptide epitalon on spontaneous carcinogenesis in female C3H/He mice. In Vivo. 2006;20(2):253-7.StudyPMID 16634527
6. 6.Khavinson V, Razumovsky M, Trofimova S et al. Pineal-regulating tetrapeptide epitalon improves eye retina condition in retinitis pigmentosa. Neuro Endocrinol Lett. 2002;23(4):365-8.Clinical trialPMID 12195242
7. 7.ABC News, 24 July 2026 - FDA advisers narrowly vote to add 6 peptides, including Epitalon and MOTS-c, to a drug compounding list; the vote is a recommendation to FDA, not a final decision.- ABC Newsnews

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