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Peptides/Longevity

Epithalon

Grade C

Russian preclinical and small-cohort human studies reported lifespan and biomarker improvements. Independent replication is limited.

Mechanism of Action

Tetrapeptide (Ala-Glu-Asp-Gly) hypothesized to upregulate telomerase activity and normalize pineal melatonin secretion.

Typical Protocol

Dose
5–10 mg
Frequency
Daily
Duration
10–20 day cycles, 2× per year
Timing
Evening
Route
Subcutaneous, intranasal
Half-life
Short, hours

Educational reference only — not medical advice.

Reported Benefits

  • Reported telomerase upregulation in cell culture
  • Sleep architecture improvement
  • Circadian normalization

Side Effects

  • Largely unknown long-term
  • Injection site reactions

Contraindications

  • Active malignancy
  • Pregnancy

Known Interactions

MelatoninAdditive effects on pineal signaling.

References

  1. [1]Khavinson VK — Peptides and ageing Neuroendocrinology Letters, 2002

Comparison vs Alternatives

All Peptides →
AttributeEpithalonThis pageSemaglutideRetatrutide
EvidenceGrade CGrade AGrade A
CategoryLongevityMetabolicMetabolic
Best forTelomerase activation (research)GLP-1 receptor agonistTriple GIP/GLP-1/glucagon agonist
Typical dose5–10 mg0.25 → 2.4 mgTitrated 2 mg → 4 mg → 8 mg → 12 mg
FrequencyDailyWeeklyOnce weekly
RouteSubcutaneous, intranasalSubcutaneous weekly (oral form available)Subcutaneous injection
Legal statusResearch chemical; not approved for human use.FDA-approved (Ozempic, Wegovy). Prescription required.Investigational; not yet FDA-approved. Currently available only via clinical trials.
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