REGULATORYRFK Jr.: 14 peptides returning to Category 1 — FDA advisory committee July 2026TRENDINGHexarelin: ↑↑ Surging ��� Trends score 100 as of May 2026UPDATESemaglutide and tirzepatide compounding ended — shortage resolved Feb/May 2025REGULATORYBPC-157, TB-500, thymosin alpha-1, CJC-1295, ipamorelin: expected Category 1 reclassification pendingEVENTpep-talk con ��� First US Peptide Convention · August 2026 · Anaheim CAFDAFDA advisory committee meetings scheduled: late July 2026REGULATORYRFK Jr.: 14 peptides returning to Category 1 — FDA advisory committee July 2026TRENDINGHexarelin: ↑↑ Surging ��� Trends score 100 as of May 2026UPDATESemaglutide and tirzepatide compounding ended — shortage resolved Feb/May 2025REGULATORYBPC-157, TB-500, thymosin alpha-1, CJC-1295, ipamorelin: expected Category 1 reclassification pendingEVENTpep-talk con ��� First US Peptide Convention · August 2026 · Anaheim CAFDAFDA advisory committee meetings scheduled: late July 2026

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Peptide Library

Epithalon

Epitalon / Epithalone / AEDG peptide

Longevity & Anti-Aging

Epithalon (also spelled Epitalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) based on the natural epithalamin peptide produced by the pineal gland, developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology in Russia. Its primary mechanism of action is activation of the enzyme telomerase, which elongates telomeres at the ends of chromosomes, theoretically addressing one of the fundamental mechanisms of cellular aging. It is one of the most researched anti-aging peptides, with over 30 years of study primarily from Russian academic institutions.

Mechanism of Action

Synthetic tetrapeptide (Ala-Glu-Asp-Gly) that activates telomerase by inducing the catalytic subunit hTERT. Telomerase elongates telomeres, the protective chromosomal endcaps that shorten with each cell division. May slow cellular aging and extend replicative lifespan.

Research Protocols

For research purposes only. Not medical advice.

Research protocols use 5-10mg daily via subcutaneous injection for 10-20 day cycles, repeated every 4-6 months. Khavinson protocol: 10mg daily x 10 days, twice yearly.

Research Notes

Clinical Research Status

Epithalon has been studied in multiple clinical settings in Russia, with published data on elderly patients showing improvements in melatonin production, immune function, and cardiovascular parameters. Khavinson's research group published studies spanning over 15 years of follow-up in geriatric cohorts receiving epithalamin/epithalon. However, these studies largely lack the rigorous double-blind placebo-controlled design expected by Western regulatory agencies, and no FDA IND application has been filed.

Key Published Findings

In vitro studies demonstrate that Epithalon activates telomerase in human somatic cells, increasing telomere length and extending cell replicative capacity beyond the Hayflick limit. Animal studies in rodents showed extension of maximum lifespan by 13-25% and reduction in spontaneous tumor incidence. Published human data from Khavinson's group report restoration of melatonin cycling, improved immune markers (T-cell function, thymus recovery), and reduced cardiovascular mortality in elderly patients followed for 6-12 years.

Safety Profile

No significant adverse effects have been reported in published clinical studies spanning decades of use in Russian geriatric populations. The tetrapeptide's small size (4 amino acids) and identity with an endogenous pineal product suggest low immunogenicity and toxicity risk. Animal studies at doses far exceeding therapeutic ranges showed no mutagenic, teratogenic, or carcinogenic effects. The activation of telomerase raises theoretical oncological concerns, though published data paradoxically show reduced tumor incidence.

Drug Interactions & Contraindications

No documented drug interactions exist in published literature. Theoretical concern exists regarding concurrent use with immunosuppressive therapy, as Epithalon may stimulate immune function. The telomerase activation mechanism raises theoretical questions about use in patients with active or recently treated cancers, though available evidence does not support increased cancer risk. Melatonin-modulating effects suggest caution with exogenous melatonin or medications affecting circadian rhythm.

Comparison to Related Compounds

Epithalon is distinguished from other anti-aging peptides (GHK-Cu, BPC-157) by its specific telomerase activation mechanism rather than growth factor or wound healing pathways. Unlike TA-65 (a telomerase activator derived from astragalus), Epithalon is a direct peptide bioregulator rather than a plant extract. Khavinson's broader research program identified tissue-specific bioregulatory peptides for multiple organs (Thymalin for thymus, Cortexin for brain), with Epithalon targeting the pineal-aging axis specifically.

Community Observations

Most commonly administered as 5-10mg subcutaneously daily for 10-20 day cycles, repeated every 4-6 months, following the protocol described in Khavinson's published research. Injectable administration is preferred due to the peptide's small size and potential for GI degradation with oral dosing. Users frequently combine it with other longevity-focused interventions and report improvements in sleep quality, energy levels, and general well-being, though objective telomere measurements are rarely obtained due to cost.

Half-Life

~30 minutes

Reconstitution

Bacteriostatic water (BAC)

Storage

Lyophilized

Refrigerate 2-8C up to 24 months.

Reconstituted

Refrigerate 2-8C. Use within 14 days.

US Legal Status

Research chemical (not FDA-approved)

Also Known As

EpitalonEpithaloneAEDG peptide

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