Epitalon Dosage and Protocol for Longevity
A neutral reference guide to common epitalon dosing ranges, cycle length, and the reconstitution math behind a 5 to 10 mg daily protocol.
Epitalon (also spelled epithalon) is a synthetic four-amino-acid peptide modeled on epithalamin, a substance studied for its links to telomere length and melatonin signaling. It is a research compound and is not approved for human use. This page is educational reference material on the numbers people cite, not a recommendation to take it.
Most published protocols cluster around 5 to 10 mg per day run in short cycles of 10 to 20 days, repeated 2 to 3 times per year. Below is how those figures break down and how to turn a dry vial into measured units with a reconstitution calculator.
Common epitalon dosage ranges
Reference protocols in circulation tend to land in a narrow band. The most cited figures are:
- Daily amount: 5 to 10 mg per day, usually given as one subcutaneous dose
- Cycle length: 10 to 20 consecutive days per cycle
- Frequency: 2 to 3 cycles per year, often spaced evenly across the calendar
- Total per cycle: roughly 50 to 200 mg depending on the daily figure and number of days
A 10 mg/day x 10 day cycle and a 5 mg/day x 20 day cycle both total 100 mg, which is why you see both written up as similar protocols. Some longer references stretch a lower daily amount across a full 20 days; others keep the days short and the daily figure higher. The decision of whether to use any of this, and at what amount, belongs to a licensed clinician.
The mechanism behind the protocol
Two mechanisms get cited most often in the research literature, and they explain why the protocols are short and cyclical rather than continuous.
Telomere and telomerase activity
The headline reason epitalon is studied for longevity is its reported effect on telomerase, the enzyme that maintains telomeres at the ends of chromosomes. Cell and animal studies have described increased telomerase activity and telomere elongation. This is laboratory research, not a proven human outcome, and nothing here should be read as a claim that epitalon extends lifespan or prevents aging.
Melatonin and the pineal gland
Epithalamin, the natural compound epitalon is based on, was studied for its action on the pineal gland and melatonin rhythm. That pineal link is why dosing is sometimes timed to the evening in reference protocols. Again, this is mechanism description, not a directive.
Reconstitution math: a worked example
Epitalon ships as a lyophilized powder, often in 10 mg, 50 mg, or 100 mg vials. You add bacteriostatic water to dissolve it, then draw an insulin syringe. The concentration you create decides how many units equal your target amount.
Say you have a 50 mg vial and add 2 mL of bacteriostatic water. That gives 25 mg/mL, or 0.25 mg per unit on a standard U-100 insulin syringe (100 units = 1 mL).
- Target 10 mg: 10 / 0.25 = 40 units
- Target 5 mg: 5 / 0.25 = 20 units
- One 50 mg vial at 10 mg/day covers a 5 day stretch; at 5 mg/day it covers 10 days
Change the water volume and every number moves. Add 1 mL to the same 50 mg vial and you get 50 mg/mL, so 10 mg becomes 20 units instead of 40. Run your own vial size and fill volume through the peptide dosage calculator so you are reading the syringe correctly. For converting a milligram target into syringe ticks, the mg to units calculator does the same step in one field.
Storage and handling notes
Once reconstituted, epitalon is generally kept refrigerated and used within the window typical for reconstituted peptides. The dry powder is more stable than the mixed solution. See how long reconstituted peptides last and the general guide on how to store peptides for the reference ranges and why temperature matters.
Because cycles are short, many reference protocols size the vial and fill volume so a single mixed vial is used up within its stable window rather than sitting half-finished. The reconstitution chart lists common vial-and-water combinations side by side.
How epitalon compares to other longevity peptides
Epitalon sits in the same general interest category as other research peptides studied for aging-related pathways. If you are mapping the wider space, browse the full peptide reference library for individual compound pages and their own dosing math. Each peptide has its own concentration quirks, so do not carry one peptide's units over to another.
Key takeaways
- Cited protocols: 5 to 10 mg/day, 10 to 20 day cycles, 2 to 3 times per year
- A typical cycle totals around 50 to 200 mg
- Mechanism interest centers on telomerase activity and the melatonin/pineal pathway
- Concentration drives your unit count; a 50 mg vial in 2 mL gives 0.25 mg/unit
- Epitalon is a research compound, not approved for human use; dosing decisions belong to a clinician
Track your vials, cycles, and reconstitution figures in the Stackr app, and read the full disclaimer before using any reference numbers here.
Try the peptide calculators
Open the calculatorFrequently asked questions
- What is a common epitalon dosage?
- Reference protocols most often cite 5 to 10 mg per day, given as a single subcutaneous dose. This is educational information about published figures, not a dosing recommendation. Any decision belongs to a licensed clinician.
- How long is an epitalon cycle?
- Cited cycles run 10 to 20 consecutive days, repeated 2 to 3 times per year. A 10 mg/day x 10 day cycle and a 5 mg/day x 20 day cycle both total about 100 mg.
- How many units is 10 mg of epitalon?
- It depends on concentration. A 50 mg vial mixed with 2 mL of bacteriostatic water gives 25 mg/mL, so 10 mg equals 40 units on a U-100 insulin syringe. Run your own vial and water volume through a reconstitution calculator.
- Why is epitalon studied for longevity?
- Research interest centers on its reported effect on telomerase activity and telomere length, plus its link to the pineal gland and melatonin rhythm. These are laboratory findings, not proven human outcomes.
- Does reconstituted epitalon need refrigeration?
- Reconstituted epitalon is generally kept refrigerated and used within the window typical for mixed peptides. The dry powder is more stable than the solution. See the storage guides for reference ranges.
Keep this calculation in your pocket
Stackr saves every vial you reconstitute, tracks doses remaining, and reminds you to reorder before you run out. The reference app for people who take their protocol seriously.
Educational tool only, not medical advice. Peptides are research chemicals, not for human consumption. Full disclaimer.