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    LONGEVITY

    Epithalon — The Telomere Peptide

    9 min read · Apr 2026

    Background

    Epithalon (also Epitalon, Epithalone) is a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Gly. It is the synthetic analogue of Epithalamin, a polypeptide complex isolated from the bovine pineal gland by Vladimir Khavinson and colleagues at the St. Petersburg Institute of Bioregulation and Gerontology in the 1980s.

    What is proven (largely in Russian literature)

    Russian-language and select English-language studies in mice, rats, and Drosophila report increased mean lifespan, restored melatonin rhythms, reduced incidence of spontaneous tumours, and improved age-related immune parameters.

    In-vitro work shows telomerase reactivation in normal human somatic cells (fibroblasts) treated with Epithalon, leading to telomere lengthening across passages in culture.

    What is NOT proven

    No large Western randomised controlled trials of Epithalon exist. Independent replication outside the Khavinson group of the lifespan-extension and tumour-incidence data is limited.

    Human telomere lengthening, biological-age reversal, or any clinical anti-ageing outcome from injected Epithalon is not supported by Western regulatory-grade trial data.

    Open research questions

    Whether the in-vitro telomerase reactivation translates to humans in vivo. Whether long-term telomerase upregulation carries oncological risk (a long-standing concern in telomere biology). Pharmacokinetics and tissue distribution in humans.

    Regulatory status

    Not approved by the FDA, MHRA, or EMA. Used in some Russian gerontology clinics on an off-label basis.

    All Proteus® compounds are sold strictly for in-vitro research. Nothing on this page is medical advice, a treatment claim, or a recommendation for human use. Where compounds are licensed medicines in any jurisdiction, that approval applies to the licensed product supplied through a regulated pharmacy — not to research-grade material.

    References & further reading

    1. PubMed — 'Epithalon' literature search
    2. PubMed — 'Khavinson telomerase peptide' literature search
    3. Khavinson V.Kh. — Peptide bioregulation publications
    4. Wikipedia — Epitalon

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