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Epithalon

A tetrapeptide studied for aging biology. Most evidence is animal or laboratory, with one older controlled clinical study in a retinal condition.

The basics

Human protocol on recordNone published
Animal or laboratory figures9
Published records retrieved40
Registered trials0
Certificate of analysisPending, available on request
Regulatory statusResearch-grade material, no approved human use

1. The protocol on record

Hard disclaimer. Figures below are transcribed from a published study or an approved label exactly as the source states them. They record what researchers administered in a trial population, not instructions for any person, and none of it is adjusted to you. Most compounds here have no approved human use. Do not act on any of it without a licensed prescriber who knows your history.

Amounts and schedules, human record

No published human protocol exists for Epithalon in the cited record. No amount, frequency or schedule can be given here without inventing it, and this page does not invent figures.

Animal and laboratory models (not human figures)

Phase or modelAmountFrequencyTimingRouteDurationSource
Female transgenic FVB/N mouse HER-2/neu breast-cancer model, epithalon arm1 mg5 times a weeknot statedsubcutaneousfrom the 2nd month of life to deathsource
Male LIO rat DMH colon-carcinogenesis model, epithalon group 21 microg5 days a weeknot statedsubcutaneousduring the whole experimentsource
Male LIO rat DMH colon-carcinogenesis model, epithalon groups 3 and 41 microg5 days a weeknot statedsubcutaneousafter termination of carcinogen injections, or during the period of DMH exposure onlysource
Male LIO rat DMH colon-carcinogenesis model, epithalon group 21 micro gfive times a weeknot statednot stated6 months, from the first injection of DMH till the end of the experimentsource
Male LIO rat DMH colon-carcinogenesis model, epithalon groups 3 and 41 micro gfive times a weeknot statednot statedafter termination of the carcinogen injections, or during the period of DMH exposure (first 5 weeks of the experiment)source
Urethane-anesthetized male Wistar rat motor cortex study, epithalon infusion2 ngsingle infusionnot statedintranasalsingle infusion followed by 30-minute recordingsource
Male LIO rat colon-carcinogenesis model, carcinogen challenge (DMH, not epithalon)21 mg/kg body weightweekly, at a single dosenot statedsubcutaneousfive injectionssource
Male LIO rat colon-carcinogenesis model, carcinogen challenge (DMH, not epithalon)21 mg/kg body weightweekly, at a single dosenot statedsubcutaneousfive injectionssource
SHR mouse chromosome-aberration study, melatonin comparison arm (not epithalon)20 mg/liternot statednight hourswith drinking waternot statedsource

Half-life and why the schedule looks like that

The cited record states no half-life, clearance, or duration of action for epithalon in any species. "Not stated in the cited record." What the record does state is dosing frequency in animal studies, without any pharmacokinetic basis for it: - Female transgenic FVB/N HER-2/neu mice received 1 mg subcutaneously 5 times a week, from the 2nd month of life to death (PMID:12459848). - Male LIO rats in colon-carcinogenesis models received 1 microg subcutaneously 5 days a week / five times a week, in various regimens (PMID:12049808, PMID:12964022). - Female C3H/He mice received 0.1 microg 5 times a week (PMID:16634527); female and male rats received 0.1 microg 5 times a week from the age of 4 mont

Handling and storage

- Lyophilised storage: Not stated in the cited record. - Storage after reconstitution: Not stated in the cited record. - Temperature: Not stated in the cited record. - Light: Not stated in the cited record. - Stability duration: Not stated in the cited record.
These figures summarise what published research and approved labels describe. They are educational, not a recommendation or a personal protocol. Any dose, schedule, or decision to use a compound belongs with a licensed prescriber.

Open the interactive builder for reconstitution maths and a calendar →

2. Safety and harm reduction

Reported adverse effects

EffectHow often reportedPopulationSource
None reported in the cited recordfrequency not statednot applicablenot applicable

Cautions stated in the literature

  • A 2026 orthopaedic review states that although preclinical studies of peptides including epithalon are promising, "there is a current lack of clinical trials" (PMID:41490200).
  • A 2025 in vitro diabetic retinopathy study states that more mechanistic investigations are needed to confirm Epitalon's benefits and safety (PMID:40493162).

Stop and get help

  • A severe or worsening reaction of any kind after exposure.
  • Signs of an allergic reaction, such as rash, itching, swelling, or difficulty breathing.
  • Signs of injection-site infection, such as spreading redness, warmth, pain, swelling, or discharge.
  • Any effect that is unexpected and persistent.
Epithalon at Peptara Labs

Read the third-party certificate of analysis before anything else. Research-grade material, research use only.

Open the Epithalon page