Reviewed & approved by Dr. Nova Reyes · Last checked 2026-10-15. ← Back to Evidence Library

Epitalon: what the evidence says

At a glance

What it is: epitalon (also spelled epithalon or epitalone) is a lab-made peptide of 4 amino acids (Ala-Glu-Asp-Gly, or "AEDG"). It was modeled on epithalamin, an extract from cow pineal glands, by V. Kh. Khavinson's group at the St. Petersburg Institute of Bioregulation and Gerontology. It is sold for anti-aging, "telomere lengthening," sleep and melatonin. ^{R1, R13}

What the evidence says: the telomere claims come from cells in a lab dish, not people. A change in cells isn't the same as a health benefit. The longevity claims come from animal studies and from human studies of the older extract (epithalamin), not epitalon itself. Nearly all of it comes from the developer's group or its collaborators, and much is published only in Russian. Caution Studies run by the people who developed a product may be biased toward showing it works. ^R1–R12

Biggest risks: no long-term safety data in people. Products sold in the US are unapproved "research use" powders with unknown contents. FDA has flagged possible immune reactions from impurities in compounded versions (prepared by pharmacies as custom medicines for individual patients, with a prescription). ^{R15, R16}

Claim	Rating (proposed)
Animal Telomere lengthening	No human data: cell-culture studies only (one independent); no study measured telomeres in people ^{R1, R2, R3}
Human Anti-aging / longer life in people	No human data for epitalon: no outcome trial found. The human death-rate studies tested the cow-gland extract epithalamin, a different product (developer-linked) ^{R10, R11}
Human Sleep / melatonin	Very limited: one developer-linked Russian-language report that lumps epitalon with the extract, no numbers, no sleep outcomes; a Paris-led rat-gland study (Khavinson co-author) found no effect ^{R8, R9}
Animal Longer life in animals	No human data (animal studies only): developer-linked; no change in average lifespan, longer life in the longest-lived 10% ^{R5, R6, R7}
Regulatory	Russia: no listing found Caution · US: not FDA-approved; listed by FDA as nominated but withdrawn (formerly 503A Category 2), not on the bulks list; FDA advisers reportedly backed compounding in July 2026 against FDA staff advice, no final FDA decision · WADA 2026: not named; S0 likely applies if no government has approved it ^R14–R17
Established human dose	Unknown None. No regulator anywhere has reviewed a dose we could confirm

Evidence verdict: No human data (telomeres; anti-aging in people; lifespan, animals only) / Very limited (sleep and melatonin) Card verdict: Very limited (sleep and melatonin) · Telomeres, longevity, and anti-aging in people: No human data Card note: Varies by use, see page

This page reports what studies used. It is not dosing advice.

Legend: HUMAN data · ANIMAL / LAB data · UNKNOWN · UNVERIFIED: not yet confirmed against a primary source

What is it?

Epitalon is a synthetic (lab-made) tetrapeptide, a chain of 4 amino acids (Ala-Glu-Asp-Gly). It was designed from the amino-acid makeup of epithalamin, a peptide extract from cow pineal glands (the small gland in the brain that makes melatonin). Epitalon and epithalamin are not the same product, and results for one don't automatically apply to the other. ^R13

About the evidence

We sort studies by who did them and what kind of study they are: - Developer-linked studies: co-authored by V. Kh. Khavinson or the St. Petersburg Institute of Bioregulation and Gerontology. This is almost all of the evidence, including the animal lifespan studies and the human studies. Caution Why that matters: Khavinson's group developed both epithalamin and epitalon and has a stake in them working, so its studies may be biased, even unintentionally. Few results have been checked by independent labs. ^{R1, R2, R4–R8, R10–R12} - Independent studies: a 2025 cell study from Brunel University London (authors declare no competing interests) ^R3, and a 2025 review from the Medical University of Warsaw (no conflicts declared) ^R13. A 2003 rat study was led by a Paris group, but Khavinson was a co-author, so we count it as developer-linked. ^R9 - By type: lab (cells in a dish), animal, and human evidence are kept in separate sections below. They answer different questions.

Access limits: we read only PubMed abstracts, not full papers. Several studies are in Russian, and much of the Russian research on epitalon is published only in Russian and isn't on PubMed at all. So we can't confirm randomization, blinding, dropouts or harms. Claims seen only in summaries, vendor pages or secondary sources are marked UNVERIFIED.

Does it lengthen telomeres?

Animal In cells in a lab dish, reportedly yes. In people, we don't know. Telomeres are protective caps on the ends of chromosomes (the packages that hold our DNA), a bit like the plastic tips on shoelaces. They get shorter each time a cell divides. - In human fetal lung cells, the developer's group reported that epitalon switched on telomerase (the enzyme that rebuilds telomeres). It also reported longer telomeres. ^R1 In a follow-up, treated cells made 10 extra divisions beyond the control cells. ^R2 - An independent UK lab reported that epitalon lengthened telomeres in normal human cells and in breast cancer cell lines. In the cancer cells this happened through a different route (ALT, "alternative lengthening of telomeres"). ^R3 Longer telomeres in cancer cells is not obviously a good thing. This has not been studied in people.

A change in cells isn't the same as a health benefit. No study we found measured telomere length in people taking epitalon, or showed that a telomere change in people improves health or lifespan. UNVERIFIED Vendor claims that epitalon "reverses aging" or lengthens telomeres in humans.

Does it slow aging or extend life?

Animal In animals (developer-linked): - In 54 treated mice vs 54 controls, epitalon did not change average lifespan or total tumor rates. It increased lifespan of the longest-lived 10% by 13.3% and maximum lifespan by 12.3%, and leukemia was less common. ^R5 - In female rats, it did not change lifespan under a normal light cycle. Under constant or natural northern light, maximum lifespan was longer. ^R6 - In fast-aging mice, results were mixed. Tumor rates weren't changed. ^R7

Human In people: no epitalon outcome trial found. The human death-rate figures that vendors cite are for epithalamin (the cow-gland extract), not epitalon. They are a different product, so these results cannot be applied to epitalon: - A 12-year study in older people with heart disease (described as randomized in the abstract) reported 28% fewer deaths with epithalamin than in the control group. Khavinson is a co-author. Group sizes, blinding and dropouts aren't in the abstract. ^R11 - A 6–8 year study of 266 older people reported lower death rates with epithalamin and/or thymalin (another extract). It was run by the developer's institute. ^R10 Animal Human cells in a dish (epitalon itself): in blood cells taken from people aged 75–88 and treated in a dish, epitalon changed how tightly DNA was packed. This is a lab change, not a health benefit, and not data from people taking it. ^{R4, R12}

Does it help sleep or melatonin?

Human We don't know. - A developer-linked Russian-language report said epithalamin and epitalon raised night-time melatonin in older people with low levels and in old monkeys. The abstract reports the two products together, so we can't tell what epitalon did on its own. It gives no numbers, no placebo and no sleep outcomes. ^R8 A higher melatonin level is a lab change. It isn't the same as better sleep. - A related study of the extract only (epithalamin, not epitalon; developer-linked) reported melatonin went up in older people with low levels and tended to go down in those with normal levels. ^R19 - Animal In a Paris-led rat study (Khavinson co-author), epitalon had no significant effect on melatonin release from rat pineal glands. ^R9

We found no trial measuring sleep in people taking epitalon.

Is it safe?

Unknown No long-term safety data in people. We found no human trial of epitalon that reported adverse events (problems reported after use, which may or may not have been caused by the drug) with numbers.
Human The developer-linked melatonin report says the preparations (epithalamin and epitalon together) had "no side effects," with no counts given. ^R8
Animal A mouse study concluded long-term use was safe in mice. That does not show safety in people. ^R5
Unknown Dropouts: we found no trial reporting dropouts because of side effects compared with placebo.
Caution Cancer-cell question: in a lab dish, epitalon lengthened telomeres in breast cancer cells too. ^R3 Whether this matters in people is unknown. The developer-linked animal studies didn't report more tumors. ^R5–R7
Caution Compounding risk: FDA said compounded epitalon "may pose risk for immunogenicity" (an unwanted immune reaction) because of clumping and peptide impurities, that it "has not identified safety-related information regarding epitalon for the proposed route of administration," and that it "lacks sufficient information to know whether the drug would cause harm if administered to humans." ^R15

What we don't know

Unknown Whether epitalon does anything measurable for health in people
Unknown Whether it changes telomeres in people
Unknown Long-term safety, including any cancer-related risk
Unknown How it behaves in the body. We found no human pharmacokinetic study (a study of how the body absorbs, uses and clears a drug)
Unknown What is actually in a US "research use" vial

Is it legal?

Russia: we found no listing for epitalon or epithalamin on Vidal.ru (a Russian drug directory). UNVERIFIED We did not check the official registry (grls.rosminzdrav.ru), so Russian approval status is unconfirmed. ^R14
EU: no approval found.
US: not FDA-approved. Sold online as "research use only" powders. Those are not legal medicines for people to use. ^R16
Compounding: FDA's safety page lists epitalon under "bulk drug substances nominated but withdrawn" (substances that had been in 503A Category 2, "significant safety risks"). It is not on the 503A bulks list. (FDA page current as of Apr 22, 2026.) ^R15
Compounding, July 2026: FDA chose to take epitalon (free base and acetate) to its Pharmacy Compounding Advisory Committee on July 24, 2026, even though the nominations had been withdrawn, and FDA staff proposed that it NOT be added to the bulks list. ^R20 News coverage reports the committee voted in favor of allowing it (7–4, for insomnia). UNVERIFIED The vote outcome and count come from news coverage; we did not find FDA's official minutes. ^R21 The vote is advice only. FDA must still decide and go through rulemaking, so the vote does not make compounded epitalon legal now.
Athletes: epitalon is not named on WADA's 2026 Prohibited List. S0 bans substances "with no current approval by any governmental regulatory health authority for human therapeutic use." S0 also only covers substances not addressed elsewhere on the list. We found no approval anywhere and no other section that names it, so S0 likely applies. Unknown WADA hasn't confirmed this for epitalon. Athletes should check with their anti-doping agency. ^R17

As of Oct 15, 2026.

What's in the vial?

Unknown For "research use" or fake (counterfeit) products, the contents are unknown. Scientists at Belgium's national public health institute identified epitalon in two illegal pharmaceutical preparations (published 2015). ^R16 We found no published testing of US retail product purity. We test retail products blind under the Open Peptide Standard. See results at /tests/. A passing test covers one batch, tested on one date. It does not mean the compound itself is safe.

What do users report?

Self-report, not evidence.

Unknown TBD. We'll only list this once we can cite a public source.

Study details

^R1–R3 Animal Lab (cell-culture) studies: telomeres

Study	Cells	Reported	Limitations	Developer-linked?	Citation
Khavinson 2003 ("Epithalon" = epitalon)	Telomerase-negative human fetal fibroblasts	Telomerase expressed and active; telomeres elongated	Cells only; no numbers in abstract	Yes	PMID 12937682 ^R1
Khavinson 2004	Human fetal lung fibroblasts	Telomeres elongated; 10 extra divisions (44 passages vs 34)	Cells only	Yes	PMID 15455129 ^R2
Al-Dulaimi 2025 (+ correction)	Breast cancer lines 21NT, BT474; normal epithelial cells and fibroblasts	Dose-dependent telomere lengthening via hTERT/telomerase in normal cells; via ALT in cancer cells	Cells only	No (Brunel Univ.; no competing interests declared)	PMID 40908429; correction PMID 41240216 ^R3

^{R5–R7, R9} Animal Animal studies

Dose amounts are the study arms used, not recommendations.

Study	Animals	Study arm	Reported	Developer-linked?	Citation
Anisimov 2003	Female SHR mice, 54 per group	1.0 µg/mouse (~30–40 µg/kg) s.c., 5 days monthly from 3 months, vs saline	No change in mean lifespan or total tumor incidence; last 10% +13.3%; max +12.3%; chromosome aberrations −17.1%; leukemia 6.0-fold lower	Yes (Khavinson)	PMID 14501183 ^R5
Vinogradova 2007	Female rats, 3 light regimens	0.1 µg daily, 5×/week from 4 months	No lifespan change on standard light; max lifespan +95 days (natural) and +24 days (constant light); fewer tumors only under natural light	Yes (Khavinson)	PMID 18856211 ^R6
Anisimov 2005 (Russian)	Female SAMP-1 / SAMR-1 mice	1 µg/mouse s.c.	Longer survival in last 10% of SAMP-1; tumor frequency not changed; also tested melatonin	Yes (Khavinson)	PMID 15909815 ^R7
Djeridane 2003	Young and old male rat pineal glands (perifusion)	10⁻⁶–10⁻⁴ M	No significant effect on melatonin secretion	Co-author Khavinson; Paris-led	PMID 12809170 ^R9

^{R4, R8, R10–R12, R19} Human Human and human-cell studies (abstracts only)

Study	People	Product	Design (per abstract)	Reported	Developer-linked?	Citation
Korkushko 2007 (Russian)	Elderly people; old monkeys	Epithalamin and epitalon (results not separated in abstract)	Not stated; no placebo described	Night melatonin rose in those with low levels; "no side effects"	Yes (Khavinson)	PMID 17969590 ^R8
Korkushko 2004	Healthy elderly	Epithalamin (extract, not epitalon)	Before/after	Night melatonin up if initially low; tended down if normal	Yes (Khavinson)	PMID 15452611 ^R19
Korkushko 2006	Elderly with coronary disease	Epithalamin (extract, not epitalon)	"Randomized," 12 years	28% fewer deaths vs control; cardiovascular deaths 2-fold lower	Yes (Khavinson)	PMID 17426848 ^R11
Khavinson & Morozov 2003	266 elderly, 6–8 years	Epithalamin and/or thymalin (extracts, not epitalon)	Controlled; design not detailed	Mortality 1.6–1.8-fold lower with epithalamin	Yes (developer institute)	PMID 14523363 ^R10
Khavinson 2003	Cultured lymphocytes, people aged 76–80	Epitalon (in dish)	Lab	Chromatin "activation"	Yes	PMID 14647006 ^R4
Khavinson 2004	Leukocytes, people aged 75–88	Epitalon + 4 other peptides (in dish)	Lab	Chromatin decondensation	Yes	PMID 15085253 ^R12

^R13–R21 Reviews, regulatory and other sources (as of Oct 15, 2026)

^R13 Araj 2025, Int J Mol Sci: review (Medical University of Warsaw; no conflicts declared); epitalon was synthesized from epithalamin's amino-acid composition. PMID 40141333.
^R14 Vidal.ru search, "эпиталон" and "эпиталамин": no results. https://www.vidal.ru/search?t=all&q=эпиталон Caution Third-party directory, not the official registry.
^R15 FDA, Certain Bulk Drug Substances … Significant Safety Risks (content current as of 04/22/2026; epitalon under "nominated but withdrawn"): https://www.fda.gov/drugs/human-drug-compounding/certain-bulk-drug-substances-use-compounding-may-present-significant-safety-risks
^R16 Vanhee 2015, Drug Test Anal (Scientific Institute of Public Health, Brussels): epitalon identified in two illegal pharmaceutical preparations (title only on PubMed; no abstract). PMID 25535022.
^R17 WADA 2026 Prohibited List, S0 (checked against a saved copy of the official PDF; epitalon not named): "Any pharmacological substance which is not addressed by any of the subsequent sections of the List and with no current approval by any governmental regulatory health authority for human therapeutic use … is prohibited at all times."
^R18 Willis & Vu 2026, Int J Pharm Compd: PCAC peptide recommendations (abstract does not name epitalon; one author is at ARL Bio Pharma, a testing lab). PMID 42752426. Context only.
^R20 FDA, PCAC meeting materials, July 23–24, 2026 (https://www.fda.gov/media/193342/download): epitalon nominations (LDT Health Solutions for the International Peptide Society; Wells Pharmacy Network) withdrawn, FDA presenting anyway; "FDA is proposing that Epitalon (free base) NOT be included" and same for epitalon acetate.
^R21 Caution News, not an FDA record: STAT, July 24, 2026, "FDA advisory panel rejects compounding of one peptide, backs another" (https://www.statnews.com/2026/07/24/fda-peptide-compounding-panel-backs-epitalon-rejects-emideltide/; re-read Oct 15, 2026): the panel voted 7–4 to add epitalon to the list for insomnia. FDA has not posted minutes on its meeting page (checked Oct 15, 2026).

Full reference list (verified on PubMed E-utilities, Oct 15, 2026)

Khavinson VKh, et al. Bull Exp Biol Med. 2003;135(6):590-2. doi:10.1023/a:1025493705728. PMID 12937682
Khavinson VKh, et al. Bull Exp Biol Med. 2004;137(5):503-6. doi:10.1023/b:bebm.0000038164.49947.8c. PMID 15455129
Al-Dulaimi S, et al. Biogerontology. 2025;26(5):178. doi:10.1007/s10522-025-10315-x. PMID 40908429; Correction: Biogerontology. 2025;27(1):1. doi:10.1007/s10522-025-10326-8. PMID 41240216
Khavinson VKh, et al. Neuro Endocrinol Lett. 2003;24(5):329-33. PMID 14647006
Anisimov VN, et al. Biogerontology. 2003;4(4):193-202. doi:10.1023/a:1025114230714. PMID 14501183
Vinogradova IA, et al. Bull Exp Biol Med. 2007;144(6):825-30. doi:10.1007/s10517-007-0441-z. PMID 18856211
Anisimov VN, et al. Vopr Onkol. 2005;51(1):93-8. PMID 15909815
Korkushko OV, et al. Adv Gerontol. 2007;20(1):74-85. PMID 17969590
Djeridane Y, et al. J Endocrinol Invest. 2003;26(3):211-5. doi:10.1007/BF03345159. PMID 12809170
Khavinson VKh, Morozov VG. Neuro Endocrinol Lett. 2003;24(3-4):233-40. PMID 14523363
Korkushko OV, et al. Bull Exp Biol Med. 2006;142(3):356-9. doi:10.1007/s10517-006-0365-z. PMID 17426848
Khavinson VKh, et al. Bull Exp Biol Med. 2004;137(1):78-81. doi:10.1023/b:bebm.0000024393.40560.05. PMID 15085253
Araj SK, et al. Int J Mol Sci. 2025;26(6):2691. doi:10.3390/ijms26062691. PMID 40141333
Vanhee C, et al. Drug Test Anal. 2015;7(3):259-64. doi:10.1002/dta.1771. PMID 25535022
Willis J, Vu N. Int J Pharm Compd. 2026;30(4):329-336. PMID 42752426
Korkushko OV, et al. Bull Exp Biol Med. 2004;137(4):389-91. doi:10.1023/b:bebm.0000035139.31138.bf. PMID 15452611

Disclaimer

This page is for education and harm reduction. It is not medical advice and not a recommendation to use epitalon. Please talk to a clinician you trust, especially if you have or have had cancer, take sleep medicines or melatonin, or are pregnant. Report problems to FDA MedWatch (https://www.fda.gov/safety/medwatch).