Also known as: Epitalon · Epithalone · Ala-Glu-Asp-Gly
Epithalon is a synthetic tetrapeptide analog of Epithalamin — a polypeptide extract of the pineal gland — developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation. It is notable for activating telomerase, the enzyme responsible for telomere elongation, with potential longevity applications.
Epithalon was developed in Russia over several decades of research on pineal gland bioregulators. The peptide is a synthetic version of the natural tetrapeptide produced by the pineal gland epithelium, and has been studied extensively in both animal models and human trials — some spanning 15+ years — making it one of the most longitudinally studied peptide bioregulators.
Its primary claim to scientific attention is the activation of telomerase reverse transcriptase (TERT), the catalytic subunit of the telomerase complex. By elongating telomeres — the protective caps on chromosomal DNA that shorten with each cell division — Epithalon may delay cellular senescence and extend healthy cell lifespan. Human trials by Khavinson et al. showed 12–16% reductions in mortality in elderly cohorts.
Epithalon upregulates expression of hTERT (human telomerase reverse transcriptase), the catalytic core of telomerase. This enables somatic cells — which normally lack active telomerase — to elongate shortened telomeres, reversing a key hallmark of cellular aging and reducing replicative senescence.
Epithalon restores age-related decline in pineal gland melatonin secretion by normalizing the activity of hydroxyindole-O-methyltransferase (HIOMT), the enzyme responsible for melatonin synthesis. Restored melatonin levels improve circadian rhythm regulation and antioxidant defense.
Epithalon upregulates superoxide dismutase (SOD) and catalase expression, reducing oxidative stress. It also enhances DNA mismatch repair pathways, reducing mutation accumulation in aging tissues.
Epithalon is administered in courses rather than continuously. The most studied protocol (Khavinson et al.) used 10-day courses, 1–2 times per year. Telomere length increases have been observed in human subjects. No significant adverse events reported in clinical studies spanning up to 6 years of follow-up.
Course-based use modelled on Russian clinical protocols. The goal is episodic telomerase activation rather than chronic dosing. Most practitioners use 1–2 courses per year. Response assessment is challenging without baseline/follow-up telomere length testing.
Ask anything about Epithalon — mechanisms, dosing protocols, interactions, or research comparisons.
Thymosin Alpha-1 (Tα1) is the N-terminally acetylated 28-amino-acid peptide originally isolated from bovine thymus by Al…
Larazotide is a synthetic 8-amino-acid peptide derived from zonula occludens toxin (ZOT) from Vibrio cholerae. It acts a…
KPV is a naturally occurring tripeptide derived from the C-terminal sequence of alpha-melanocyte-stimulating hormone (α-…