Superpower peptides available for pre-order. Get first access.

Not FDA-approved

Brain & sleep

Epitalon

Also called epithalon, epithalamin

EvidenceLimited research
ClassPineal tetrapeptide (Ala-Glu-Asp-Gly)

Epitalon is a synthetic four-amino acid peptide sold for anti-aging and sleep. See what limited human research exists and where it stands with the FDA in 2026.

Reviewed by
William Maish, MD MBA MPH, Clinical Product Lead
Published
April 18, 2026
Last updated
October 29, 2026

Key takeaway

Epitalon is a synthetic four-amino acid peptide based on a pineal-gland extract, sold on the "research peptide" market for anti-aging and sleep. Its human evidence is limited to older studies from a single Russian research group, not independently replicated. As of October 2026 it is still not FDA-approved, but the FDA has granted enforcement discretion allowing it to be compounded by 503A pharmacies while formal rulemaking remains pending.

At a glance

FDA statusNon-FDA-approved peptide sold in the wellness/gray market
What it isSynthetic pineal tetrapeptide (Ala-Glu-Asp-Gly) marketed for longevity
ResearchHuman evidence is sparse, dated, and from a single non-independent source
Compounding statusCompoundable by 503A pharmacies under FDA enforcement discretion since October 28, 2026, pending formal rulemaking; still not FDA-approved
Evidence strengthLimited research

What is epitalon?

Epitalon (also spelled epithalon) is a synthetic four-amino acid peptide derived from epithalamin, a natural extract of the pineal gland. It is sold through wellness and "research peptide" channels for anti-aging, longevity, and sleep, often described as a "peptide bioregulator." It is not an approved medicine.

How does it work?

Epitalon is proposed to:

  • Help restore the body's melatonin rhythm1
  • Act as an antioxidant
  • Influence gene expression, including claims of activating telomerase2 (an enzyme linked to cellular aging)

These mechanistic claims rest on cell-culture and animal work, with the telomerase findings coming from laboratory systems. This describes the proposed mechanism, separate from demonstrated benefit in people.

Is it FDA-approved?

No. Epitalon is not approved by the FDA for any use. In July 2026 the FDA's Pharmacy Compounding Advisory Committee gave epitalon a narrow, non-binding favorable vote toward the 503A compounding list. On October 28, 2026, the FDA granted enforcement discretion5 allowing 503A pharmacies to compound epitalon (along with five other peptides) while the formal rulemaking to add it to the 503A bulks list is still pending. This permits licensed pharmacies to compound epitalon, but it is not the same as FDA approval, it carries no stated end date, and it does not reflect any new finding that epitalon is safe or effective.

What does the research show?

The human evidence is limited and single-source. The main human reports come from one Russian research group and include older studies on melatonin rhythm and age-related conditions; these are generally small, largely non-English, and not independently replicated with modern randomization and blinding. No independent, large, modern trial establishes a longevity or wellness benefit. The telomerase and lifespan3 claims rest mainly on laboratory and animal work.

More for brain & sleep

Sources: reports from the originating research group are indexed on PubMed, including a human-cell telomerase study (Khavinson et al., 2003, DOI 10.1023/a:1025493705728), an animal lifespan study (Anisimov et al., 2002, DOI 10.1023/a:1021104819170), and a review of the group's aging work (Khavinson, 2002, PubMed PMID 12374906); and reporting on the July 2026 FDA advisory committee vote (AJMC4). This document is educational, is not medical advice or a health claim, and is not an offer to sell any product.