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Epithalon

Epitalon (L-alanyl-L-alpha-glutamyl-L-alpha-aspartyl-glycine; AEDG peptide)

Limited Human DataFDA Category 2Mixed / Secondary Results

Access and compounding status raise extra safety and legal questions.

A synthetic short peptide that activates an enzyme which helps maintain the protective caps on your chromosomes (the structures that carry your DNA), and may also support natural melatonin production for sleep. Most evidence comes from laboratory research and small clinical programs; large, rigorous human trials are lacking.

25 studiesUpdated 2026-03-10Subcutaneous injection · Intramuscular injection · Sublingual · Parabulbar injection · Intranasal · Oral

This entry is a cited research summary, not an established treatment reference. Dosing language is included as source context, not as medical instruction.

Clinical bottom lineUse caution

Epithalon has limited human evidence; signal requires confirmation.

Access and compounding status raise extra safety and legal questions.

Safety Summary

Adverse event reporting for epithalon is sparse. The retinitis pigmentosa clinical program (162 patients) reported no side effects, and a 15-year follow-up study with epithalamin showed no adverse events PMID 40141333. However, the 2025 review emphasizes that critical short- and long-term toxicity, genotoxicity, carcinogenic potential, and drug interaction studies remain missing. The FDA flags immunogenicity, aggregation, and peptide-impurity risks for compounded epithalon products. The side effects listed above are primarily sourced from vendor safety pages and community reports, not from rigorous clinical trial adverse event monitoring.

Clinical check-in

If real-world use or exposure is being considered, review potential interactions, contraindications, and monitoring needs with a licensed clinician rather than relying on summary copy alone.

See cited studies on this page (25)

Cited sources

Every claim on this page links to one of the 25 sources below. Identifiers are PubMed (PMID), ClinicalTrials.gov (NCT), or DOI; click through to the source of record before acting on a claim.

  1. 1PMID 40141333PubMed
  2. 2PMID 12937682PubMed
  3. 3PMID 15455129PubMed
  4. 4PMID 11550036PubMed
  5. 5PMID 12937684PubMed
  6. 6PMID 22117547PubMed
  7. 7PMID 18856211PubMed
  8. 8PMID 12360356PubMed
  9. 9PMID 15723138PubMed
  10. 10PMID 15085253PubMed
  11. 11PMID 12360351PubMed
  12. 12PMID 10977918PubMed
  13. 13PMID 12420072PubMed
  14. 14PMID 11329090PubMed
  15. 15PMID 11713572PubMed
  16. 16PMID 11687853PubMed
  17. 17PMID 39742404PubMed
  18. 18PMID 12096440PubMed
  19. 19PMID 14743608PubMed
  20. 20PMID 15490729PubMed
  21. 21PMID 24323970PubMed
  22. 22PMID 24423684PubMed
  23. 23PMID 28976150PubMed
  24. 24PMID 18830022PubMed
  25. 25PMID 17152724PubMed