Epitalon dosage calculator: how to work out your dose

Last updated 2026-07-26

Is there a real epitalon dosage calculator?

Not in the sense of a validated tool that tells you the correct dose based on your weight, age, or goals. What exists online are unit-conversion calculators: you enter a vial's total peptide content (say 10mg) and the amount of water you'll add for reconstitution, and the tool spits out mg per mL or mcg per unit on an insulin syringe. That's arithmetic, not medicine. No regulatory body has set an approved human dose for epitalon (also spelled epithalon) because it isn't an approved drug in the US, EU, or Russia for anti-aging use. The FDA has not evaluated epitalon for safety or effectiveness for any indication ^[1]. So any calculator you find is doing conversion math on top of doses that come from a small, non-replicated research literature, not an established clinical range. If you want the real numbers behind those protocols rather than a black-box tool, the most useful thing is to know exactly what doses the original studies used and why. That's what the rest of this article covers. For a broader walkthrough of timing and injection mechanics, see how to take epitalon peptide.

What doses did the actual epitalon research use?

The dosing data mostly traces back to work by Vladimir Khavinson and colleagues at the St. Petersburg Institute of Bioregulation and Gerontology. Their human studies, mostly in elderly patients, used epitalon injected at roughly 5-10mg per day for 10 to 20 consecutive days, often repeated as an annual or semi-annual course ^[2]. One frequently cited paper, published in Neuroendocrinology Letters, followed elderly patients given Epithalon (their branded synthetic version) and reported effects on melatonin rhythm restoration over a multi-year follow-up ^[2]. Animal work from the same research tradition, including studies in mice and rats, used both injected and later orally-delivered epitalon at various mg/kg doses to look at tumor incidence and lifespan ^[3]. There is no dose-ranging trial in the Western sense. No Phase 1 study establishing a maximum tolerated dose exists. No placebo-controlled trial with dose arms compared head to head has been published either. The 5-10mg/day, 10-20 day course is essentially a legacy protocol from one research group's clinical practice, carried forward into the peptide community with little independent verification. A table of what's commonly repeated online versus what's actually documented in the literature: | Claim | Documented in Khavinson-era studies | Independently replicated |

How do you calculate epitalon dosage from a vial?

This is the part a calculator can genuinely help with. It's just unit conversion, not a clinical recommendation. Vials sold as research chemicals typically come as 10mg or 50mg of lyophilized (freeze-dried) peptide powder. Step one: decide how much bacteriostatic water you'll add to reconstitute the powder. A common choice is 1-2mL for a 10mg vial. Step two: divide total peptide (mg) by total liquid volume (mL) to get concentration in mg/mL. A 10mg vial reconstituted with 1mL gives 10mg/mL; with 2mL, it gives 5mg/mL. Step three: convert to units on an insulin syringe, where 100 units equals 1mL on a standard U-100 syringe. At 10mg/mL, each unit (0.01mL) delivers 0.1mg (100mcg). So to get a 5mg dose used in some protocols, you'd draw 50 units. To get a lower 200-300mcg research dose sometimes discussed for shorter daily use, you'd draw 2-3 units. This is exactly the math any 'epitalon dosage calculator' online is running. The risk isn't the arithmetic, it's the input: nobody has validated that 5mg or 10mg daily is the right, safe, or effective amount in a human being outside a small, unreplicated Russian research program. For the injection mechanics themselves, Epitalon how to inject walks through reconstitution and subcutaneous technique in more detail.

What is a typical epitalon cycle length and how often is it repeated?

Most protocols derived from the Russian literature describe a 10 to 20 day injection course, done once or twice a year. This isn't a 'take it daily forever' peptide in the described research pattern, it's a short, pulsed course. The rationale given in the original papers ties to seasonal rhythms. The idea is that a short course timed with seasonal light changes might help reset circadian and neuroendocrine signaling, which connects to the melatonin findings in ^[2]. Whether that rationale holds up, or whether the course-based dosing was just a practical clinical choice, isn't independently confirmed. People in online peptide communities have extended this into longer or more frequent cycles (30 days, or repeated every few months) with no data behind those variations at all. That's an extrapolation beyond anything in the primary literature. For a full breakdown of cycle timing and why shorter is closer to what was actually studied, see Epitalon cycle length.

Does body weight change how much epitalon you need?

There's no published human data establishing a mg/kg dosing relationship for epitalon, unlike drugs where weight-based dosing is standard and evidence-backed. The 5-10mg/day figures from Russian studies were apparently used as flat doses regardless of patient weight, at least based on what's reported in the available papers ^[2]. Animal studies do use weight-based dosing (mg/kg), which is standard practice in rodent pharmacology, but those figures don't translate directly to a human flat dose through simple scaling. The researchers themselves didn't publish that conversion for epitalon specifically ^[3]. Any calculator claiming to give you a personalized dose based on your body weight is applying a formula that has no cited source behind it for this particular peptide. If you're trying to reason about relative dose size, the honest comparison is to the flat 5-10mg/day figure used in the source studies, not a per-kilogram extrapolation nobody has published.

Is epitalon dosage the same for men and women?

The published studies included both men and women in the elderly patient cohorts without describing a sex-based dose difference ^[2]. No study has specifically compared male versus female pharmacokinetics or effects for epitalon. That's a real evidence gap, not a settled non-issue. Peptide hormones and short-chain compounds can have sex-linked differences in clearance and receptor sensitivity in other contexts, but nobody has run that comparison for epitalon. If you see a calculator or guide claiming a different dose for women versus men, that's not sourced in anything published. It's someone's guess.

What's the difference between an epitalon dosage calculator and epitalon peptide injections guidance?

A dosage calculator, at best, converts a vial's contents into mg/mL and syringe units. It answers 'how much liquid do I draw for X mg.' It does not, and can't, answer 'is X mg the right or safe amount for a human,' because that clinical judgment doesn't exist in validated form for epitalon. Guidance on epitalon peptide injections covers the broader picture: injection site rotation, subcutaneous versus intramuscular technique, storage of reconstituted peptide, and how the short course pattern from the research literature is typically followed. The calculator handles the math; the injection guidance handles the practice. Neither one supplies missing safety data.

How is epitalon's half-life relevant to dosing frequency?

Epitalon (a synthetic tetrapeptide, Ala-Glu-Asp-Gly) is reported to have a very short half-life in circulation, on the order of minutes, because it's a small peptide that's rapidly broken down by peptidases ^[4]. That short half-life is part of the reasoning behind daily dosing during the injection course rather than a once-weekly schedule. A short half-life doesn't tell you the total dose needed. It tells you how often you'd need to redose to maintain any exposure. This is a separate question from 'how many mg per injection,' and conflating the two is a common error in peptide dosing discussions. For the pharmacokinetic detail, see Epitalon half life.

Why can't telomerase or telomere claims tell you the right human dose?

Because the strongest telomerase and lifespan claims for epitalon come from rodent and cell-culture experiments, not from dose-response studies in living humans. Khavinson's group and collaborators reported increased telomerase activity in human somatic cell cultures exposed to epitalon in vitro, and separately reported reduced spontaneous tumor incidence and some lifespan effects in mice given the peptide ^{[3] [5]}. Those are legitimate published findings worth taking seriously as a starting hypothesis, but they're cell-culture and rodent results. A calculator, or anyone, claiming to translate 'X mcg/mL in a petri dish activated telomerase by Y%' into 'therefore take Z mg per day for human longevity' is making a leap the data doesn't support. No study has measured telomere length or telomerase activity in human blood before and after a real-world epitalon injection course and published a dose-response curve. That's the single biggest gap in the evidence, and it's the reason nobody, including any calculator, can give you a dose validated against a human biological outcome. For the fuller picture of what the before-and-after evidence in humans actually shows (mostly self-reported and uncontrolled), see epitalon peptide before and after.

What are the safety limits nobody has actually established?

There is no published maximum tolerated dose, no formal toxicology study in humans, and no long-term safety monitoring data for repeated annual epitalon courses. The Russian human studies that exist are small, often uncontrolled or loosely controlled, and don't report the kind of adverse event tracking a modern Phase 1/2 trial would require ^[2]. The absence of any registered dose-ranging or placebo-controlled human trial for epitalon in the US clinical trials registry reflects exactly this kind of gap: a substance with a theoretical mechanism and some foreign human use, but without the safety and efficacy data US regulators require before allowing broad clinical use. That's a statement about evidence adequacy, not a claim that epitalon is definitely dangerous. But it is an honest statement that the safety case isn't built yet. Practically: staying near the 5-10mg/day, 10-20 day course dosing that's actually in the literature is a more defensible choice than any escalated or extended protocol found in forum posts, simply because it's the only dosing pattern with any published human observation behind it at all.

Epitalon versus epithalon: does the spelling change the dose?

No. Epitalon and epithalon refer to the same synthetic tetrapeptide (Ala-Glu-Asp-Gly), and the spelling difference is just a transliteration variance from the Russian, not two different compounds or formulations ^{[2] [4]}. You'll see both spellings used interchangeably by suppliers and in older papers, sometimes even within the same document. If a site or calculator implies epithalon and epitalon have different recommended doses, that's incorrect. They're the identical molecule under two names.

What should you actually do instead of trusting an online calculator?

Use a unit-conversion tool only for the arithmetic (mg per mL, units per dose), and treat every dosing figure it spits out as downstream of the 5-10mg/day, 10-20 day course figures from the original Russian research, not as an independently validated recommendation. Don't extrapolate to daily long-term use, higher doses, or weight-based scaling. None of that has published support. If you want oversight rather than DIY guesswork with a research-chemical vial, the more defensible path is a provider-reviewed process where a clinician reviews your history and a licensed pharmacy handles compounding and sterility. Epitalon Rx works with a provider-reviewed process along these lines, fulfilled through a licensed compounding pharmacy partner, which at minimum removes the vial-math and sourcing uncertainty from the equation, though it doesn't change the underlying fact that human efficacy data for epitalon remains thin. Whatever route you take, the honest baseline is this: the calculator can get your mg-per-mL right. It cannot tell you that the dose is proven safe or effective in humans, because nobody, including the original researchers, has published that data yet.

Frequently asked questions

What is the standard epitalon dosage used in research?

Human studies from Khavinson's group in Russia used roughly 5-10mg per day, injected, for 10 to 20 consecutive days, repeated once or twice a year. This is a legacy clinical protocol from a small, non-replicated research program, not an FDA-established or internationally validated dose.

How much water do you mix with a 10mg epitalon vial?

Commonly 1-2mL of bacteriostatic water, giving a concentration of either 10mg/mL (with 1mL) or 5mg/mL (with 2mL). The exact volume changes your concentration and syringe draw, not the total peptide dose, which is fixed by the vial's stated mg content.

Is there an FDA-approved dose for epitalon?

No. Epitalon has no FDA approval for any use in the United States, and no FDA-reviewed labeling or dosing standard exists to reference.

Can an epitalon dosage calculator tell me if my dose is safe?

No. These calculators do unit conversion only, mg to mL, mL to syringe units. They can't validate safety because no dose-ranging or toxicology study in humans has established a safe range for epitalon; the underlying numbers all trace back to one small research group's clinical practice.

Does epitalon dosage differ between epithalon and epitalon spellings?

No, they're the same compound, the synthetic tetrapeptide Ala-Glu-Asp-Gly, just different transliterations from Russian. Any dosing difference implied by spelling alone isn't real.

How long should an epitalon cycle last?

Published protocols describe 10 to 20 day injection courses, repeated at most one or two times per year. Longer or more frequent cycles seen in online communities aren't supported by the original published research.

Does epitalon dosage need to be adjusted for body weight?

No published human study establishes a weight-based (mg/kg) dosing formula for epitalon; the Russian studies used flat 5-10mg/day doses regardless of patient weight. Any calculator applying a weight adjustment is using an unsourced formula, not published clinical data.

What's the difference between epitalon dosage in mice studies versus humans?

Rodent studies use mg/kg dosing and have shown effects on tumor incidence and lifespan in mice; human studies used flat 5-10mg/day doses in short courses. The mouse-to-human dose conversion for epitalon has not been published, so scaling one to the other isn't scientifically supported.

Why is epitalon dosed for such short cycles instead of daily long-term use?

The short 10-20 day course pattern in the original studies appears linked to a hypothesis about resetting seasonal circadian and neuroendocrine signaling, plus epitalon's very short circulating half-life (minutes), which favors a pulsed course over indefinite daily use. This rationale hasn't been independently tested against alternative schedules.

Can telomerase activation data be used to calculate a human dose?

No. Telomerase activation was reported in human cell cultures in vitro and lifespan effects in rodents, not in a human dose-response trial. There's no published curve linking a specific human injected dose to a measured telomerase or telomere outcome in blood.

Is it safe to increase epitalon dosage above 10mg per day?

Nobody has published a maximum tolerated dose or toxicology data for epitalon in humans, so there's no evidence base to say a higher dose is safe or more effective. Staying near the 5-10mg/day figure actually documented in the literature is the more defensible choice.

Where does epitalon dosing data actually come from?

Almost entirely from a small group of Russian researchers led by Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology, published mainly in journals like Neuroendocrinology Letters. It has not been independently replicated by other research groups at scale.

Sources

1. FDA, "Compounded Peptide Products, Including Semaglutide, Guidance for Industry" (Docket FDA-2023-D-4189): Epitalon/epithalon has not been FDA-approved and unapproved peptides used in compounding lack established safety and efficacy data
2. Khavinson et al., "Peptide regulation of aging: results and prospects," Neuroendocrinology Letters, PMID 12374908: Human studies used epitalon injections around 5-10mg/day for 10-20 days, with effects on melatonin rhythm reported in elderly patients
3. Anisimov et al., "Effect of Epitalon on Biomarkers of Aging, Life Span and Spontaneous Tumor Incidence in Rats," PMID 14687886: Rodent studies of epitalon reported effects on spontaneous tumor incidence and lifespan using weight-based dosing
4. PubChem, Epitalon (Compound Summary, CID 3081373): Epitalon is the synthetic tetrapeptide Ala-Glu-Asp-Gly, also transliterated as epithalon
5. Khavinson et al., "Peptide Epitalon Activates Telomerase in Human Somatic Cells," PMID 14738232: Epitalon exposure was reported to increase telomerase activity in human somatic cell cultures in vitro