Epithalon 50 mg — Quick Chart
Dosing & Reconstitution Overview
Epithalon — also spelled Epitalon — is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) modelled on 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 50 mg vial, adding 5.0 mL of bacteriostatic water yields a concentration of 10 mg/mL (10,000 mcg/mL). At that concentration, every unit on a U-100 insulin syringe (0.01 mL) holds 100 mcg, so a 5 mg research dose is drawn as 50 units (0.50 mL) and a 10 mg dose as 100 units (1.00 mL). One 50 mg vial therefore supplies a complete 5 mg × 10-day cycle with no leftover material.
Standard (Gradual) Cycle Schedule
The standard schedule mirrors the short, intermittent courses used across the published gerontology work, where a daily amount is held for a fixed run of consecutive days and then followed by a long off period rather than continuous dosing.
| Phase | Daily Dose | Units (U-100) | Volume | Vials / Cycle |
|---|---|---|---|---|
| Cycle on — days 1–10 | 5 mg (5000 mcg) | 50 units | 0.50 mL | 1 vial |
| Cycle off | 0 mcg | — | — | — |
| Repeat | 5 mg (5000 mcg) | 50 units | 0.50 mL | typically 2 cycles / year |
Reconstitution Steps
- Let the sealed lyophilized vial and the bacteriostatic water reach room temperature, then wipe both stoppers with an alcohol swab.
- Draw 5.0 mL of bacteriostatic water and inject it slowly down the inside wall of the vial — never directly onto the powder pellet. Split across two draws if your syringe holds less than 5 mL.
- Swirl or roll gently until fully dissolved. Do not shake; aggressive agitation foams and can shear the peptide.
- The solution should be clear and colourless. Label the vial with the concentration (10 mg/mL) and the reconstitution date.
- Store upright under refrigeration between uses and draw subsequent volumes with a fresh sterile syringe each time.
Advanced (Extended) Cycle Schedule
The extended schedule reflects the longer 20-day courses and the 10 mg/day high-intensity arm reported in the literature. The 10 mg step doubles the daily draw, and a 20-day run at that dose requires more than one vial.
| Phase | Daily Dose | Units (U-100) | Volume | Vials / Cycle |
|---|---|---|---|---|
| Days 1–20 (extended standard) | 5 mg (5000 mcg) | 50 units | 0.50 mL | 2 vials |
| Days 1–10 (high intensity) | 10 mg (10000 mcg) | 100 units | 1.00 mL | 2 vials |
| Cycle off | 0 mcg | — | — | 4–6 months |
A 100 mg cumulative course — whether 5 mg over 20 days or 10 mg over 10 days — matches the total exposure most commonly cited in the longevity research, and uses two 50 mg vials per cycle.
Supplies Needed
- Epithalon vials (50 mg): 1 vial for a 10-day 5 mg course; 2 vials for a 20-day 5 mg course or a 10-day 10 mg course; ~2–4 vials per year for the usual two-cycle cadence.
- Insulin syringes (U-100, 1 mL): 10 for a 10-day course, 20 for a 20-day course — one fresh syringe per draw.
- Bacteriostatic water (10 mL): one bottle reconstitutes two 50 mg vials at 5 mL each.
- Alcohol swabs: a single 100-count box comfortably covers several cycles.
Protocol Overview
- Research goal: model telomerase activation, pineal/melatonin regulation and circadian signalling.
- Schedule: once-daily subcutaneous administration in short intermittent courses, preferably evening, in the published model.
- Dose band: 5 mg/day standard; up to 10 mg/day in extended arms.
- Fill: 50 mg lyophilized, reconstituted to 10 mg/mL with 5 mL diluent.
- Storage: −20 °C dry; 2–8 °C once reconstituted.
Dosing Protocol Notes
- Run the compound in defined 10–20 day courses rather than continuously; long off periods are integral to the published model.
- Keep administration on a fixed daily cadence, ideally near bedtime, to align with the studied melatonin/circadian endpoints.
- Reconstitute on a schedule that keeps solution fresh — most courses finish a vial well within the refrigerated stability window.
- Two courses per year is the typical interval cited in the literature; document each cycle’s dates and totals.
Storage Instructions
Keep sealed lyophilized vials at −20 °C, protected from light, where stability extends for many months; routine short-term holding 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, avoid repeated freeze-thaw cycles, and let sealed vials reach room temperature before opening.
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.
- Keep the diluent measured precisely — at 5 mL the 10 mg/mL math only holds if the full volume is added.
- Document each draw — date, volume, remaining material — for reproducibility.
How Epithalon Works
Epithalon is a short synthetic peptide (Ala-Glu-Asp-Gly) derived from the pineal extract epithalamin. In the published research it is associated with activation of telomerase, the enzyme that lengthens telomeres, which is the basis of most of the longevity-modelling interest in the compound. It is also reported to stimulate nocturnal melatonin output from the pineal gland and to influence circadian rhythm, alongside described antioxidant, gene-regulatory and immune-modulating effects. Because the molecule is small and water-soluble, it reconstitutes readily and clears quickly, which underlies the short daily-course dosing pattern seen in the studies.
Reported Benefits & Side Effects
Benefits observed in research
- Telomere maintenance via telomerase activation in cell and animal models.
- Restoration of melatonin production and circadian rhythm regulation.
- Extended lifespan and lower tumour incidence in rodent studies.
- Improved cardiovascular outcomes and reduced mortality in a multi-year human follow-up cohort.
Side effects reported
- Generally well tolerated, with no serious adverse events reported in the available literature.
- Occasional mild injection-site reactions.
- Transient changes in sleep pattern may occur, consistent with its melatonin-linked activity.
Supporting Lifestyle Factors (Research Context)
- Consistent sleep hygiene, in keeping with the compound’s circadian/melatonin endpoints.
- Balanced, micronutrient-dense nutrition used as standard study controls.
- Regular physical activity and stress management as background conditions in the published designs.
Injection Technique (Reference Only)
- Clean the vial stopper and the site with alcohol swabs and let them dry.
- Pinch a skinfold and insert subcutaneously at a 45–90° angle depending on needle length; aspiration is not required for subcutaneous work.
- Inject slowly and steadily, then withdraw and apply gentle pressure.
- Rotate sites systematically (abdomen, thighs, upper arms) and dispose of sharps in an approved container.
References
- Review of the pineal tetrapeptide Epitalon — geroprotective and telomerase-related mechanisms. Int. J. Mol. Sci. (2025). mdpi.com/1422-0067/26/6/2691
- Epithalon and ageing — experimental and clinical findings. Biogerontology / PMC. pmc.ncbi.nlm.nih.gov/articles/PMC12411320
- Khavinson VKh, et al. Peptide promotion of telomere elongation and cell-division extension. Neuroendocrinology Letters (2001). pubmed.ncbi.nlm.nih.gov/11524632
- Khavinson VKh, et al. Epitalon effects on telomerase activity and telomere length in human cells. Bull. Exp. Biol. Med. (2003). pubmed.ncbi.nlm.nih.gov/17426848
- Epitalon — compound overview and pharmacology summary. Wikipedia. en.wikipedia.org/wiki/Epitalon