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Research peptide — not a dietary supplement
Epitalon is a research compound, not a regulated dietary supplement. It is typically administered by injection and sold “for research use only.” The evidence below is largely preclinical (animal and in-vitro) or early-stage, so no evidence score is assigned. This page is provided for transparency and education — it is not a recommendation to use. Consult a qualified healthcare provider, and be aware that purity, dosing, and legal status vary by jurisdiction.
What the evidence says
Most Epitalon studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from mixed-quality randomised trials published 2001–2025.
Based on 11 studies · 1 RCT
Confidence
LowBy outcome
The current evidence for Epitalon is insufficient to assign an evidence score, based on 11 indexed studies. A synthetic pineal tetrapeptide (Ala-Glu-Asp-Gly) promoted online as a 'longevity' / telomerase-activating peptide. Honest appraisal: nearly the entire evidence base comes from a SINGLE research group (Khavinson and colleagues at the St. Petersburg Institute of Bioregulation & Gerontology) and is animal-lifespan, cell-culture, and low-rigor human 'geroprotector' reports — with almost no independent replication. The headline 'telomerase activation' rests on one group's fetal-fibroblast experiments, and the human longevity data are mostly on the crude pineal extract (Epithalamin), not the pure peptide. It is NOT a regulated dietary supplement — it is sold injectable 'for research use only'. Representative study: PMID 17426848.
The commonly studied dose of Epitalon is No validated human dose. Online 'protocols' commonly cite ~5-10 mg subcutaneously per day in ~10-20 day courses — this is anecdotal, not from controlled human trials.. Individual needs vary — start at the lower end of the range and adjust based on how you respond.
Elamipretide
Mostly mechanism / observationalAn investigational mitochondria-targeting tetrapeptide that binds cardiolipin in the inner mitochondrial membrane. Honest appraisal: it is one of the most rigorously trialed mitochondrial peptides — real Phase 2/3 randomized trials exist — but its pivotal studies were largely negative. The Phase 3 MMPOWER-3 trial in primary mitochondrial myopathy MISSED its primary endpoints, and the EMBRACE-STEMI reperfusion-injury trial failed to reduce infarct size. The clearest positive signals are in the ultra-rare Barth syndrome and in open-label / exploratory data, not in confirmatory trials. It is not an approved drug and not a dietary supplement; grey-market injectable sourcing is unstudied.
Last reviewed June 2026 · evidence from 11 studies · how we score
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
Epitalon (Epithalon, Ala-Glu-Asp-Gly)
A synthetic pineal tetrapeptide (Ala-Glu-Asp-Gly) promoted online as a 'longevity' / telomerase-activating peptide. Honest appraisal: nearly the entire evidence base comes from a SINGLE research group (Khavinson and colleagues at the St. Petersburg Institute of Bioregulation & Gerontology) and is animal-lifespan, cell-culture, and low-rigor human 'geroprotector' reports — with almost no independent replication. The headline 'telomerase activation' rests on one group's fetal-fibroblast experiments, and the human longevity data are mostly on the crude pineal extract (Epithalamin), not the pure peptide. It is NOT a regulated dietary supplement — it is sold injectable 'for research use only'.
Nearly the entire evidence base is preclinical (cell-culture and animal-lifespan) from a single research group with no independent replication; human longevity reports are low-rigor and mostly on the crude pineal extract, not the pure peptide.
Epitalon (also spelled Epithalon / Epithalone; sequence Ala-Glu-Asp-Gly, 'AEDG') is a synthetic tetrapeptide designed from the amino-acid composition of Epithalamin, a peptide extract of the bovine/calf pineal gland.
It is marketed online as a 'longevity peptide' said to activate telomerase, lengthen telomeres, restore melatonin rhythms and slow aging.
The honest evidence picture is unusual and important to state plainly: almost the entire literature originates from one research network — Vladimir Khavinson and colleagues at the St.
Petersburg Institute of Bioregulation & Gerontology and a small set of collaborators — and there is very little independent replication by unaffiliated labs.
The most-cited mechanistic claim, that Epitalon induces telomerase catalytic-subunit expression, telomerase activity and telomere elongation, comes from this group's experiments in cultured human fetal fibroblasts, where treated cells reportedly overcame the Hayflick division limit; these in-vitro findings have not been robustly reproduced or translated to humans.
Animal data (from the same network) report modest extensions of mean/maximum lifespan and reduced spontaneous tumor incidence in mice, rats and fruit flies, alongside antioxidant, melatonin-normalizing and immune effects.
The human 'geroprotector' evidence is of LOW rigor: a frequently-cited multi-year clinical report ('Peptides of pineal gland and thymus prolong human life') and a 12-year mortality study in elderly cardiac patients were both conducted by the same group, are mostly on the crude pineal extract Epithalamin (not the pure Ala-Glu-Asp-Gly peptide), and are not independently replicated, modern, or registered in the way a Western RCT would be.
Critically, Epitalon is NOT a regulated dietary supplement: it is sold as an injectable 'for research use only', with unverified purity/sterility, and its proposed telomerase-activating action raises an unstudied, theoretical concern about promoting the growth of pre-existing cancers.
The website renders this entry as effectively unscored: the longevity/telomerase claims rest on animal data plus a single research group's human reports, which cannot establish efficacy in people.
The signature claim: in one research group's cultured human fetal fibroblasts, Epitalon induced expression of the telomerase catalytic subunit, telomerase enzymatic activity and telomere elongation, reportedly letting cells overcome the Hayflick division limit. This is a single-group in-vitro finding, not independently replicated or shown to translate to humans. If real, telomerase reactivation also underlies a theoretical, unstudied cancer concern.
The originating group proposes Epitalon acts as a short cell-penetrating peptide that binds specific base-pair sequences in gene promoter regions (including telomerase, interferon-gamma and others), directly initiating transcription. This is a modelled/hypothesized epigenetic mechanism from the same network, not a validated human target.
In rat pinealocyte culture Epitalon (epithalone) stimulated AANAT and pCREB and raised melatonin output, and in aged animals/elderly people the pineal peptides reportedly normalized the night-time melatonin rhythm. These are mechanistic and low-rigor clinical observations from the originating group.
How Epitalon works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
Tap node to isolate • Pinch to zoom • Tap edge for research
No validated human dose. Online 'protocols' commonly cite ~5-10 mg subcutaneously per day in ~10-20 day courses — this is anecdotal, not from controlled human trials.
Can be taken without food
| Form | Type |
|---|---|
| 💊Research-use-only injectable peptide (not a dietary supplement form) | Recommended |
Epitalon is the synthetic pure tetrapeptide; 'Epithalamin' is the older crude calf-pineal peptide extract used in most of the human reports. The two are not interchangeable, and neither is an approved drug or regulated supplement.
Minimum: 2 weeks
Optimal: 3 weeks
Cycling: Not required
Note: No validated human timing. Injectable, research-use-only compound — not part of normal supplement scheduling and intentionally sandboxed from stacks.
Dose-response data unavailable. The current published research for Epitalon does not provide sufficient dose-specific outcome data to generate reliable dose-response curves.
Refer to the Dosage & Timing section above for recommended dose ranges based on available evidence.
Nearly every study is from Khavinson/St. Petersburg Institute of Bioregulation & Gerontology and collaborators, with little independent replication. Treat all claims as unconfirmed.
Reported mean/maximum lifespan increases and reduced spontaneous tumors in mice, rats and fruit flies — animal data only, not demonstrated in humans.
The cited human mortality/longevity reports come from the same group, are mostly on the crude pineal extract (Epithalamin) rather than the pure peptide, and are not independently replicated.
If the telomerase-activation claim is real, it raises an unstudied theoretical risk of promoting growth of pre-existing cancers. Unproven either way.
Avoid — a peptide promoted for telomerase activation raises a theoretical, unstudied risk of promoting tumor growth.
Not studied — avoid.
Not a dietary supplement; sold 'for research use only' with unverified purity/sterility. Discuss any interest with a clinician.
Tip: Sterility of research-use-only injectable product is unverified; this alone is a reason to avoid self-injection.
Tip: No long-term human safety data outside the originating group's reports; effects are essentially uncharacterized.
Timing is flexible for Epitalon — consistent daily use matters more than the time of day. There is no validated human dosing schedule.
Epitalon should be used with caution — talk to a healthcare provider before taking it. The most commonly reported side effects are injection-site reactions / infection risk, unknown long-term effects. Use caution if any of these apply to you: Pregnancy/breastfeeding (not studied); Active or prior cancer (theoretical telomerase concern — avoid); Use outside a research/clinical setting (research-use-only injectable).
Soy Peptides
Mostly mechanism / observationalShort, bioactive fragments enzymatically cleaved from soy protein — soy protein hydrolysates plus named peptides like lunasin and soy ACE-inhibitory peptides. Unlike whole soy protein (a complete protein with an FDA cholesterol claim) or soy isoflavones (phytoestrogens), these are specific peptide fragments studied for cholesterol, blood pressure and antioxidant effects. Honest appraisal: the evidence is mostly in-vitro and animal. The one published human RCT (lunasin) was null. Emerging, not established.
In old rats the pineal peptides reportedly enhanced antioxidant enzymes (SOD, glutathione peroxidase) and reduced lipid peroxidation — proposed as one contributor to the 'geroprotective' effect in animal models. Preclinical, single-network.