# Epitalon

Khavinson 'longevity' tetrapeptide; users mainly report deeper sleep.

- Page: https://peprank.xyz/peptides/epitalon
- Category: Mitochondria & longevity (Research peptide)
- Also known as: Epithalon; AEDG (Ala-Glu-Asp-Gly)
- Routes: Injection
- Sequence: AEDG (none)
- Safety tier: Strict: Avoid · Balanced: Avoid · Evidence only: Caution
- Risk axes (0 none to 3 severe): Seen harm 0, Mechanism 2, Data gap 3, Silent harm 3, Product 3
- Positive: 48% of 54 graded reports glowing or positive, shrunk toward the 49% all-report average by 8 reports' weight
- Rank: #40 of 61 research peptides
- Graded reports: 54 (Glowing 12, Positive 14, Mixed 6, Nothing 9, Negative 10, Bad reaction 3)
- Evidence: Small human studies — Russian, single group; plus animal
- Access: Grey market
- Onset: Sleep users mostly notice it within the first 1-3 nights; a few only near the end of a 20-day cycle or after it.
- Lasts: Taken nightly as a 10-20 day course; reported sleep benefit fades within one to a few weeks after stopping for most, some say it lasts months.
- Cost per month: ≈ €41–82 (at 0.5–1 mg/day, Semax Polska at €2.73/mg)
- Dose users report: 0.88–4.5 mg/day (median 2 mg, n=15), ≈ €72–370 a month at that dose
- Updated: 2026-10-30

**Why Avoid under the strict bar:** Its claimed mechanism, telomerase activation, is a theoretical oncogenic path, and the data come from a single group.

## What users report

In cognitive and sleep threads many report clearly deeper sleep and more REM during a cycle, sometimes persisting weeks; some get worse sleep, and a few list it among peptides that did nothing. Perhaps 30-40% notice nothing. (The general-health page covers it in more depth.)

**Effects:** deeper sleep, more REM; circadian reset; sleep through the night

**Downsides:** worse sleep in some; no effect for some; dose confusion (0.5 mg vs 5-10 mg)

**Risks:** claimed telomerase activation and overcoming of the cell-division limit (Khavinson in-vitro work): a theoretical cancer-promoting path; all efficacy data from a single research group

**Typical use:** 0.5-1 mg/night for 10-20 days, 1-2 cycles/year (community; old protocols 5-10 mg).

**Getting it:** Research-peptide vendors (lyophilised 10-50 mg vials, also N-acetyl nasal sprays); a few US clinics and compounders used to supply it before the FDA put it on its Category 2 (significant safety risk) list.

**Stacked with:** Pinealon (The usual partner, run in the same 10-20 day window for sleep; users credit Pinealon with REM and Epitalon with circadian reset.); DSIP (Common bedtime pairing for sleep; several reporters ran both, so effects are hard to separate.); SS-31 / NAD+ (Bundled into "longevity" or mitochondrial stacks taken a few times a year.)

## Risk profile

- **Seen harm 0/3:** FAERS holds no reports and no case report exists; first-hand reports describe insomnia, emotional blunting and injection lumps, none serious.
- **Mechanism 2/3:** Marketed for activating telomerase; FDA's reviewers judged it has 'the potential to be carcinogenic', and the one independent replication found it lengthened telomeres in breast-cancer cells through ALT. In vitro only, and the originating group's rodent studies found fewer or unchanged tumours.
- **Data gap 3/3:** Three human exposures ever, none reporting safety data, with no pharmacokinetic or toxicity studies; the longevity trials often cited used epithalamin, a pineal extract FDA treats as a different substance.
- **Silent harm 3/3:** Telomere-driven tumour promotion would be silent and delayed.
- **Product 3/3:** Grey-market injectable vials, plus some N-acetyl nasal sprays; US compounding resumed only under the October 2026 HHS enforcement discretion.
- **Never if:** Active cancer or a history of cancer; Pregnancy or breastfeeding (no human reproductive data)

## Top reports

- Glowing, sleep: “Day three of Russian peptides (pinealon, epitalon, vilon). Waking up feels like coming out of a years long coma. Sleep so deep that I got to the layer where time slows to a crawl.” — [@GraduatedBen on X](https://x.com/GraduatedBen/status/2113666415903305866)
- Glowing, sleep: “Epitalon has been one is the most incredible compounds I've ever tried. I've been off it since late December, and my sleep has been BEYOND amazing even after stopping. Sleep is so easy and super deep.” — [@inthemoment555 on X](https://x.com/inthemoment555/status/2024485749765071134)
- Glowing, sleep: “I used to dread going to bed. I genuinely felt fear. Fear that I wouldn’t be able to fall asleep, that I’d lay wide awake in bed for 8 hours, and that my day would suffer because of it. I now look forward to it. Epitalon has helped me so much.” — [@OnlyThroughGod on X](https://x.com/OnlyThroughGod/status/2115841916214628487)
- Glowing, sleep: “just finished my 12 day epitalon cycle and i can confidently say it’s the best sleep peptide i’ve used so far ... the surprising part wasn’t that i slept more. it was that i needed less sleep to feel just as rested” — [@rahulmodifit on X](https://x.com/rahulmodifit/status/2068051826667360297)
- Glowing, sleep, 1 mg titrated to 4 mg/night: “I titrated up to 4mg everyday before bed for 20 days. I was coming off a grave yard shift of 10 months and it totally reset my sleep cycle.” — [r/BodyHackGuide](https://www.reddit.com/r/BodyHackGuide/comments/1pal5of/epitalon_journey_so_far/nrkjccl/)

## Cheapest in Europe

- [Semax Polska](https://semaxpolska.com/en/epitalone-20-mg/) (PL): Epithalon 20 mg nasal kit, €32, €1.59/mg (also contains 5 mg GHK-Cu, judged as [GHK-Cu (injectable)](https://peprank.xyz/peptides/ghk-cu-injectable) since the nasal route is systemic: Strict Avoid · Balanced Avoid · Evidence only Caution)
- [Baltic Peptides](https://balticpeptides.com/product/epithalon/) (LT): Epithalon (Epitalon) 50mg, €80, €1.60/mg
- [XL Peptides](https://xlpeptides.com/product/epitalon-10mg/) (GB): Epitalon 10mg Research Peptide, €18, €1.79/mg
- [Europa-Peptide](https://europa-peptide.de/en/shop/epithalon/) (PL): Epithalon 50mg, €99, €1.98/mg
- [Semax Polska](https://semaxpolska.com/en/epitalone-100-mg-sterile-water/) (PL): Epitalon 100 mg + bacteriostatic water, €227, €2.27/mg

## Studies

- [Korkushko et al. 2007: pineal peptides normalise the daily melatonin rhythm in old monkeys and elderly people](https://pubmed.ncbi.nlm.nih.gov/17969590/) (controlled, 2007): Epitalon and Epithalamin restored night-time melatonin release and its circadian rhythm in elderly people with low pineal function; Russian, Khavinson's group.
- [Anisimov et al. 2003: Epitalon on biomarkers of aging, life span and spontaneous tumours in female SHR mice](https://pubmed.ncbi.nlm.nih.gov/14501183/) (animal, n=108, 2003): Monthly 5-day courses did not change mean lifespan but raised maximum lifespan 12% and cut leukaemia; total tumour incidence was unchanged.
- [Khavinson et al. 2003: Epithalon induces telomerase activity and telomere elongation in human somatic cells](https://pubmed.ncbi.nlm.nih.gov/12937682/) (in-vitro, 2003): Induced telomerase catalytic subunit expression and telomere elongation in human fetal fibroblasts.
- [Khavinson et al. 2004: peptide promotes overcoming of the division limit in human somatic cells](https://pubmed.ncbi.nlm.nih.gov/15455129/) (in-vitro, 2004): Treated fetal lung fibroblasts made 10 extra divisions past their Hayflick limit and kept dividing.
- [Al-Dulaimi et al. 2025: Epitalon increases telomere length in human cell lines through telomerase upregulation or ALT activity](https://pubmed.ncbi.nlm.nih.gov/40908429/) (in-vitro, 2025): First independent (UK) replication; lengthened telomeres in normal cells via telomerase and in two breast-cancer lines via ALT activation.
- [Overview of Epitalon, a highly bioactive pineal tetrapeptide (2025 review)](https://pubmed.ncbi.nlm.nih.gov/40141333/) (review, 2025): Summarises mostly Russian animal and cell work on telomeres, melatonin and gene expression; controlled human outcome trials are lacking.

## Sources

- [Khavinson et al. 2003: Epithalon induces telomerase activity in human somatic cells](https://pubmed.ncbi.nlm.nih.gov/12937682/)
- [FDA: Bulk drug substances that may present significant safety risks (Category 2 / withdrawn list, Apr 2026)](https://www.fda.gov/drugs/human-drug-compounding/certain-bulk-drug-substances-use-compounding-may-present-significant-safety-risks)
- [MDside: FDA July 2026 PCAC votes (Semax 8-5 for, DSIP 6-7 against)](https://www.mdside.com/fda-july-2026-peptide-committee-documents/)