Single-Peptide Protocol

Epithalon (40 mg Vial) Dosage Protocol

A reference breakdown of how a 40 mg Epithalon research vial is reconstituted and cycled in the published longevity literature, expressed in insulin-syringe units for laboratory measurement work.

TetrapeptideTelomerase PathwayPineal / Circadian ResearchLyophilized

Epithalon 40 mg — Quick Chart

Reconstitution4.0 mL BAC water → 10 mg/mL
Typical Daily Range5 mg (advanced 10 mg) for 10–20 days
Per 5 mg (5000 mcg)≈ 50 units (0.50 mL)
Storage (lyophilized)−20 °C, sealed, dark

Dosing & Reconstitution Overview

Epithalon (also spelled Epitalon, sequence Ala-Glu-Asp-Gly) is a synthetic tetrapeptide modelled on a fragment of the natural pineal regulator epithalamin. The figures below are compiled strictly for laboratory and educational reference — they describe how the compound was handled and dosed across published research, not a recommendation for use in humans or animals.

For a 40 mg vial, adding 4.0 mL of bacteriostatic water yields a concentration of 10 mg/mL (10,000 mcg/mL). At that concentration, every 0.10 mL drawn on a U-100 insulin syringe equals 10 units and delivers 1 mg of material, so a standard 5 mg research dose corresponds to 0.50 mL, or 50 units, and one vial supplies roughly eight such doses.

Standard (Gradual) Titration Schedule

Unlike escalating metabolic peptides, Epithalon is studied as a fixed-dose pulse rather than a slowly raised weekly amount. The standard model administers a steady daily dose across a short cycle, then holds a long washout before any subsequent cycle.

PhaseDaily DoseUnits (U-100)VolumeVials / Cycle
Days 1–20 (on cycle)5 mg (5000 mcg)50 units0.50 mL≈ 2.5 vials
Months 4–6 (washout)0 mg
Repeat (2× per year)5 mg (5000 mcg)50 units0.50 mL≈ 2.5 vials
Units assume a 10 mg/mL fill (4 mL BAC water). A full 20-day cycle delivers 100 mg total, drawing on roughly two-and-a-half 40 mg vials.

Reconstitution Steps

  1. Let the sealed lyophilized vial and the bacteriostatic water reach room temperature, then wipe both stoppers with an alcohol swab.
  2. Draw 4.0 mL of bacteriostatic water and inject it slowly down the inside wall of the vial — never directly onto the powder pellet.
  3. Swirl gently until fully dissolved. Do not shake; aggressive agitation can shear the peptide.
  4. The solution should be clear and colourless. Label the vial with the concentration (10 mg/mL) and the reconstitution date.
  5. Store upright under refrigeration between uses and draw subsequent volumes with a fresh sterile syringe each time.

Advanced (Condensed) Schedule

An alternative model compresses the same total cycle exposure into a shorter, higher-dose window — 10 mg per day for 10 days still delivers the cumulative 100 mg of the standard 20-day cycle. The per-injection volume doubles relative to the standard step.

PhaseDaily DoseUnits (U-100)VolumeVials / Cycle
Days 1–10 (on cycle)10 mg (10000 mcg)100 units1.00 mL≈ 2.5 vials
Months 4–6 (washout)0 mg
The condensed and standard cycles deliver the same 100 mg total; the condensed version simply doubles the daily amount to 10 mg (1.00 mL) over half the days.
Note

Whether run as 5 mg for 20 days or 10 mg for 10 days, the cumulative cycle exposure is held at 100 mg of material; the choice is a pacing decision in the research model, not a change in total dose.

Supplies Needed

  • Epithalon vials (40 mg): ~2.5 vials per 100 mg cycle; ~5 vials for two cycles in a research year.
  • Insulin syringes (U-100, 1 mL): 20 for a 20-day standard cycle, 10 for a condensed 10-day cycle (one fresh syringe per draw).
  • Bacteriostatic water (10 mL): one bottle reconstitutes two-and-a-half 40 mg vials at 4 mL each.
  • Alcohol swabs: a single 100-count box comfortably covers a full cycle.

Protocol Overview

  • Research goal: model telomerase-pathway activation and circadian/pineal regulation.
  • Schedule: once-daily subcutaneous administration across a short pulsed cycle.
  • Dose band: 5 mg/day standard, up to 10 mg/day in the condensed arm.
  • Cycle: 100 mg total — 20 days at 5 mg or 10 days at 10 mg — followed by 4–6 months washout.
  • Fill: 40 mg lyophilized, reconstituted to 10 mg/mL with 4 mL diluent.
  • Storage: −20 °C dry; 2–8 °C once reconstituted.

Dosing Protocol Notes

  • Hold the daily dose flat through the cycle rather than escalating — the research model uses a fixed pulse, not titration.
  • Evening or pre-sleep administration is favoured in the literature to align with the compound's reported pineal/melatonin activity.
  • Respect the long washout: cycles are typically spaced months apart, roughly twice per research year.
  • Reconstitute fresh material periodically rather than holding one vial in solution for the entire cycle.

Storage Instructions

Keep sealed lyophilized vials at −20 °C, protected from light, where stability extends for many months; short-term routine storage at 2–8 °C is acceptable. Once reconstituted, refrigerate at 2–8 °C and use within about two to four weeks. Allow refrigerated solution to warm slightly before drawing, and avoid repeated freeze-thaw cycles.

Important Handling Notes

  • Use a sterile syringe for every draw and never re-enter the vial with a used needle.
  • Rotate sampling/handling technique to keep the stopper intact.
  • At 10 mg/mL, one U-100 unit equals 0.01 mL and delivers 100 mcg — keep this conversion in mind when measuring fractional doses.
  • Document each draw — date, volume, remaining material — for reproducibility.

How Epithalon Works

Epithalon is a short Ala-Glu-Asp-Gly tetrapeptide reported to act along two main axes in the research literature. The first is activation of telomerase, the enzyme that extends telomeres, with cell-culture work suggesting it can prolong replicative capacity. The second is modulation of the pineal gland, where it appears to restore age-blunted nocturnal melatonin release and help normalise circadian hormone rhythms. Secondary effects described in the literature include antioxidant activity, genomic regulatory influence on gene expression, and immune modulation.

Reported Benefits & Side Effects

Benefits observed in research

  • Telomerase activation and telomere maintenance supporting extended replicative lifespan in cultured cells.
  • Restoration of nocturnal melatonin output and normalisation of circadian rhythm in aged models.
  • Extended lifespan and reduced spontaneous tumour incidence reported in animal studies.
  • Improved cardiovascular outcomes and lower mortality across a multi-year human follow-up cohort.
  • Generally well tolerated, with no serious adverse events recorded in the long-term studies.

Side effects reported

  • Occasional mild injection-site reactions.
  • Transient changes in sleep pattern, consistent with the compound's circadian activity.
  • No serious or dose-limiting effects documented in the available long-term data.

Injection Technique (Reference Only)

  • Prepare the vial and site with alcohol swabs and let them dry.
  • Insert subcutaneously at a 45–90° angle depending on needle length; aspiration is not required for subcutaneous work.
  • Inject slowly and pause briefly before withdrawing the needle.
  • Rotate sites systematically across abdomen, thighs and upper arms, and dispose of sharps in an approved container.
Research-use note. Epithalon is an investigational compound that is not approved for human or veterinary use. The schedules above are reproduced from published research solely for educational and in-vitro reference. Nothing on this page is medical advice or a usage instruction.

References

  1. Khavinson V, et al. Peptide regulation of ageing and the pineal pathway — review. Int. J. Mol. Sci. (2025). mdpi.com/1422-0067/26/6/2691
  2. Anti-ageing peptides and telomere biology — review. Biogerontology via PMC. pmc.ncbi.nlm.nih.gov/articles/PMC12411320
  3. Khavinson VK, et al. Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells. Neuroendocrinology Letters (2001). pubmed.ncbi.nlm.nih.gov/11524632
  4. Effects of the pineal tetrapeptide on lifespan and tumour incidence in animal models. Bull. Exp. Biol. Med. (2007). pubmed.ncbi.nlm.nih.gov/17426848
  5. Epitalon — compound summary and research background. Wikipedia. en.wikipedia.org/wiki/Epitalon

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