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Anti-aging

Epithalon

A synthetic tetrapeptide based on a natural pineal-gland extract, studied by Russian researchers for telomerase activation, sleep and immune aging.

Research chemical Anti-aging Longevity Peptide bioregulators

Reviewed 2026-09-12
Full name
Epithalon / Epitalon (Ala-Glu-Asp-Gly)
Also known as
Epitalon, Epithalone, AEDG peptide
Regulatory status
Research chemical, no clinical approval anywhere. Human data comes mostly from a small body of Russian-language research (limited peer review by Western standards) plus animal studies.
Variant note
Sometimes sold as 'N-Acetyl Epitalon Amidate' rather than plain Epithalon (Epitalon/Epithalone). The acetylated, amidated form is marketed as more stable in solution; it has not been independently studied to the same degree as the parent tetrapeptide, and community reports of equivalence are anecdotal.

Origin

Synthetic analog of Epithalamin, a peptide complex extracted from calf pineal glands. Developed by Vladimir Khavinson's group in St. Petersburg starting in the 1980s as part of a broader program on peptide bioregulators.

Mechanism

Proposed to activate telomerase in some cell types (extending telomere length in vitro in several Khavinson studies), regulate melatonin secretion via the pineal gland, and modulate the hypothalamic-pituitary axis. Also proposed to increase lymphocyte interferon-gamma production, relevant because declining interferon-gamma is linked to immune aging.

Research summary

Evidence

The core human evidence comes from decades of Khavinson's work, including reports of extended lifespan in elderly cohorts given pineal/thymus peptide bioregulator courses and improved markers of biological aging. The research has real limitations by current standards: small cohorts, limited blinding detail, mostly published in Russian-language journals, and no independent replication in large Western randomized trials. Animal telomerase-activation data is stronger than the human longevity claims. Treat Epithalon as an interesting, under-replicated hypothesis, not an established longevity intervention.

Evidence tier: Research chemical — see the methodology note for how this is assessed.

Citations

Reported benefits

  • Reported improvement in sleep quality and depth
  • Anecdotal reports of improved skin appearance and energy over multi-week cycles
  • Interest as part of broader 'peptide bioregulator' anti-aging stacks

Dosing protocols reported in the literature & community

These are protocols reported by compounding pharmacies, published trials, or self-experimentation communities — not a prescription. Start low, especially for anything new.

Reported dosing protocols
RouteReported protocol
Subcutaneous injection — classic 'course' protocolThe traditional Khavinson-derived protocol is 5-10 mg per day for 10-20 days, done as a single annual or biannual course rather than continuous daily use — the theory being pulsed exposure rather than constant dosing.
Subcutaneous injection — lower dose variantSome self-experimenters use lower daily doses (around 1 mg/day) for a similar 10-20 day course.

Side effects

  • Generally reported as well tolerated with few acute side effects
  • Long-term human safety data at self-administered doses does not exist

Safety notes

Safety: The gap between Epithalon's marketing as a telomere/longevity peptide and the underlying human evidence is large. Treat the anti-aging framing skeptically: what's actually been shown is telomerase activity in some cell-culture and animal work, plus older, methodologically limited human cohort research from a single group.
Community & reddit notes (anecdotal — not clinical evidence)

A staple of longevity stacks, usually run as an annual or twice-yearly short course rather than continuously. Sleep improvement is the most consistently reported subjective effect. Skepticism about how much of Khavinson's telomere/lifespan story translates to modern self-administered use is common even within the community.

Mixing compatibility

Pulled from a community-charted mixing-compatibility reference (anecdotal, clinic-use, and community-reported signals) — not a safety guarantee. Verify independently before combining anything.

Used together in wellness-clinic protocols

Reported as a combination to avoid