Epithalon Calculator

What Is Epithalon?

Epithalon, also spelled Epitalon or Epithalone, is a synthetic tetrapeptide composed of four amino acids in the sequence alanine-glutamic acid-aspartic acid-glycine (Ala-Glu-Asp-Gly). It was developed as a synthetic analog of epithalamin, a polypeptide extract derived from the pineal gland. Research into this compound is largely associated with the Russian gerontologist Vladimir Khavinson and his team at the St. Petersburg Institute of Bioregulation and Gerontology, who from the 1980s and 1990s onward studied the role of pineal-derived peptides in the aging process.

The pineal gland is considered a central regulator of circadian rhythm and governs the sleep-wake cycle through the secretion of melatonin. With advancing age, pineal gland activity declines, which the research literature links to deterioration of circadian regulation, a reduction in nocturnal melatonin peaks, and a general decline in neuroendocrine function. Epithalon was conceived in this context as a short peptide intended to interact specifically with pineal-associated signaling pathways.

Epithalon is not a hormone and not a steroid. It does not bind to classical hormone receptors and does not suppress any endocrine axis. In preclinical models and a limited number of Russian studies, it has been investigated primarily in connection with telomerase activity, gene expression, and longevity. The available evidence comes predominantly from animal models and smaller investigations conducted by a single research group. Independent, large-scale human clinical trials are largely absent. For this reason, Epithalon is intended strictly for research purposes and is not offered as a medicine.

Mechanisms of Action

The mechanisms of action described for Epithalon in the research literature center on three closely interrelated areas: telomerase activation, pineal gland regulation, and effects on gene expression. These mechanisms are discussed in the context of aging research and should not be understood as established therapeutic effects.

• Telomerase activation: Telomeres are the protective end caps of chromosomes that shorten with each cell division. Telomerase is the enzyme capable of extending these end caps. In cell culture studies, Epithalon has been reported to upregulate expression of the catalytic subunit of telomerase (hTERT) and to lead to telomere elongation in human fibroblasts. This finding is the most frequently cited aspect of Epithalon research.
• Pineal gland and melatonin regulation: Animal models suggest that Epithalon may normalize the age-related decline in pineal melatonin production and restore nocturnal melatonin secretion. This is associated with stabilization of circadian rhythm and the sleep-wake cycle.
• Modulation of gene expression: Epithalon belongs to the class of so-called peptide bioregulators. The underlying hypothesis holds that short peptides can interact directly with segments of DNA and influence the transcription of specific genes. Research has described effects on the activation of ribosomal genes as well as on cellular repair processes.
• Antioxidant and neuroendocrine effects: Some studies report a reduction in oxidative stress, improved antioxidant enzyme activity, and a stabilizing influence on neuroendocrine markers in aging organisms.
• Longevity research: In animal studies, Epithalon has been associated with extended mean lifespan, a reduced incidence of spontaneous tumors in certain rodent models, and improvement of age-associated physiological parameters. These results derive from preclinical models and cannot be directly extrapolated to humans.

Dosage Calculation

Epithalon is typically administered in cycles in research rather than continuously. A typical protocol involves daily dosing over a limited period followed by an extended break. A slow titration is generally not required, since Epithalon does not exhibit a pronounced dose-dependent acute profile.

Standard Dosing Parameters

• Conservative dose: 2-3 mg per injection
• Standard dose: 5 mg per injection
• Higher range: 7-10 mg per injection
• Frequency: Once daily, in cycles (typically 10-20 consecutive days)
• Cycle length: Often one to two cycles per year, with multi-month breaks in between
• Typical syringe: 0.5 mL insulin syringe (29-31 gauge, 6-8 mm needle)

Example Calculation: 10 mg Vial with 2 mL BAC Water

A common vial size is 10 mg. Adding 2 mL of bacteriostatic water gives a concentration of 5 mg/mL (5,000 mcg/mL).

• 2 mg dose: 2 ÷ 5 = 0.40 mL (40 units on a U100 syringe)
• 3 mg dose: 3 ÷ 5 = 0.60 mL (60 units)
• 5 mg dose: 5 ÷ 5 = 1.00 mL (100 units)
• 10 mg dose: 10 ÷ 5 = 2.00 mL (the entire vial contents)

At 5 mg once daily, a 10 mg vial provides two days of dosing. For longer cycles, a larger vial (20 mg or 50 mg) or a higher reconstitution volume is therefore advisable. Use the Epithalon calculator above to compute exact volumes for any vial size, reconstitution volume, and target dose.

Injection Site Selection

Epithalon is generally administered subcutaneously into the abdominal fat tissue in research settings, since it aims for a systemic effect and does not require localized application. Subcutaneous administration is easy to perform and well tolerated. Some protocols use intramuscular injection as an alternative. Because of the short half-life, the daily dose is usually given as a single injection, occasionally split into two smaller doses.

Reconstitution

Epithalon is supplied as a lyophilized (freeze-dried) powder in sealed vials. It must be reconstituted with bacteriostatic water (BAC water) before use. Do not use sterile water for injection for multi-dose vials. BAC water contains 0.9% benzyl alcohol, which inhibits microbial growth and extends the usable window of the reconstituted solution.

Step-by-Step Reconstitution Protocol

1. Gather supplies: Epithalon vial, bacteriostatic water vial, alcohol swabs, a sterile draw needle (18-21 gauge), and your insulin syringe for injection.
2. Wipe the rubber septa of both vials with fresh alcohol swabs and allow them to air-dry for 30 seconds. Do not blow on the septa or touch them after cleaning.
3. Draw the desired volume of BAC water (2 mL is standard for a 10 mg vial) into the draw syringe.
4. Insert the needle into the peptide vial at an angle, directing the tip toward the inner glass wall rather than the lyophilized powder. A direct stream onto the powder cake can shear peptide bonds and damage the molecule.
5. Slowly push the plunger, allowing the BAC water to run down the inside wall of the vial and gradually contact the powder below.
6. Gently swirl or roll the vial between your palms until the powder is completely dissolved. The solution should appear clear and colorless. Do not shake or vortex the vial.
7. Label the vial with the reconstitution date and concentration (for example, "Epithalon 5 mg/mL, reconstituted [date]").

If the solution appears cloudy, discolored, or contains visible particulate matter, discard the vial and do not inject it.

Storage and Shelf Life

• Lyophilized powder (unreconstituted): Store at −20°C for long-term storage (stable for 24+ months). Short-term storage at 2-8°C (refrigerator) is acceptable for up to 3 months. Keep away from light and moisture. Do not leave at room temperature for extended periods.
• Reconstituted solution: Store in the refrigerator at 2-8°C. Stable for approximately 28-30 days. Keep the vial upright and away from light. Write the reconstitution date prominently on the label and discard after 30 days regardless of remaining volume.
• Do not freeze reconstituted peptide. Freeze-thaw cycles cause protein aggregation and loss of activity. Once reconstituted, the vial must remain refrigerated throughout its use window.
• Transport: Use an insulated cooler with an ice pack for any travel lasting more than 1-2 hours. Commercial insulated medication pouches maintain 2-8°C for 24-48 hours. Avoid exposure to temperatures above 25°C during transport.

Side Effects and Safety Profile

Epithalon shows a favorable tolerability profile in the available research literature. The animal studies and smaller investigations conducted to date have not described serious toxic effects. However, the data is limited and originates predominantly from a single research group. Large-scale, independent human safety studies are absent, so all statements remain subject to the caveat of incomplete evidence.

Commonly Reported Observations

• Mild redness, transient swelling, or brief discomfort at the injection site. Such local reactions usually resolve within a few hours. Rotating injection sites reduces localized irritation.
• Changes in sleep patterns, particularly at the start of a cycle. Because Epithalon is linked to melatonin regulation, some users report more vivid dreams or a shift in the time they fall asleep.
• Mild fatigue or headache, which is generally mild and transient and tends to subside over the course of the cycle.

Less Common or Theoretical Concerns

• Telomerase and cell proliferation: Because Epithalon can upregulate telomerase activity, and telomerase is also active in many tumor cells, there is a theoretical discussion about possible interactions with existing malignancies. While animal studies tend to report a reduction in spontaneous tumors, individuals with active or past cancer should not use Epithalon without oncological guidance.
• Hormonal and endocrine effects: Through the pineal axis, Epithalon could indirectly influence neuroendocrine markers. The long-term consequences of repeated use are not sufficiently characterized.
• Limited human evidence: The greatest safety concern arises from the narrow evidence base. Claims about long-term safety in humans are currently not supported by robust independent studies.

Contraindications

• Active cancer or history of malignancy (without medical supervision)
• Pregnancy and breastfeeding (insufficient safety data)
• Known hypersensitivity to any component of the preparation

No serious adverse events have been reported for Epithalon in the published literature at the doses commonly used in research. Given the absence of large-scale human clinical trials, caution is warranted, and consultation with a qualified healthcare professional is strongly recommended.

Combinations and Stacks

Epithalon as a Standalone for Longevity Research

Epithalon is frequently studied as a standalone compound in research, because its central research focus, telomerase activation and pineal regulation, does not readily combine with other mechanisms. A typical research approach uses a time-limited Epithalon cycle without additional peptides, so that observed effects can be cleanly attributed.

Epithalon + DSIP for Circadian Research

Because Epithalon is discussed in the context of melatonin regulation and the sleep-wake cycle, it is occasionally grouped in research alongside DSIP (Delta Sleep-Inducing Peptide). Both compounds are associated with sleep architecture and circadian regulation, but they act through different mechanisms.

Epithalon in the Context of Mitochondrial Peptides

In the broader field of longevity research, Epithalon is often considered together with mitochondrial and cytoprotective peptides such as MOTS-c and SS-31. While Epithalon focuses on telomeres and the pineal gland, these peptides address mitochondrial function and protection against oxidative stress. For mood- and stress-related research, Selank is also discussed within the same peptide class. Each of these compounds should be reconstituted, dosed, and monitored separately.

Frequently Asked Questions

What is the difference between Epithalon and Epitalon?

Epithalon, Epitalon, and Epithalone all refer to the same compound. The differing spellings arose from transliteration of the originally Russian name. It is the same tetrapeptide with the sequence Ala-Glu-Asp-Gly. Differences in spelling do not indicate a different substance or a different quality.

How is Epithalon typically dosed in research?

In research protocols, Epithalon is usually used cyclically. A common approach involves daily dosing of approximately 5 mg over a period of 10 to 20 days, followed by a multi-month break. One to two cycles per year are frequently described. Continuous daily use is uncommon in the literature.

Does Epithalon affect sleep?

Epithalon is linked in research to the regulation of the pineal gland and melatonin secretion. In preclinical models, a restoration of nocturnal melatonin peaks has been described. Some users report more vivid dreams or changes in sleep patterns at the start of a cycle. However, robust clinical data on sleep quality in humans is limited.

Can Epithalon be taken orally?

Epithalon is a peptide and is largely broken down by digestive enzymes in the gastrointestinal tract. Oral bioavailability is therefore low. In research, Epithalon is administered almost exclusively subcutaneously or intramuscularly. Oral or intranasal formulations are not the standard route and are poorly characterized in terms of efficacy.

How long does it take for Epithalon to show effects?

Epithalon is not used for immediately noticeable acute effects. The mechanisms discussed in research, such as telomerase activation and pineal-related effects, relate to slow cellular and neuroendocrine processes. Changes in sleep patterns may occur within the first days of a cycle, while other described effects appear only over longer time frames and in preclinical models.

Is Epithalon a hormone?

No. Epithalon is a short peptide and not a hormone. It does not bind to classical hormone receptors and does not suppress any endocrine axis. No post-cycle therapy (PCT) is required. Through the pineal axis, it may indirectly influence neuroendocrine markers, but its mode of action differs fundamentally from that of hormones or steroids.

Why is Epithalon administered in cycles?

The cyclical approach is derived directly from the original research protocols, which combined short, intensive administration phases with long breaks. The rationale rests on the assumption that the described effects on telomeres and the pineal gland are triggered through a limited impulse and do not require continuous use. Cyclical administration also reduces cumulative exposure given the limited long-term evidence.

Does BergdorfBio offer Epithalon?

Epithalon is not currently available in the BergdorfBio product range. This page serves as a research and dosing reference. For available research peptides in related categories, it is worth looking at MOTS-c and Selank.

Medical Disclaimer: The information on this page is provided for educational and research purposes only. Epithalon is not an approved drug or medical treatment and is provided strictly for research use. Nothing on this page constitutes medical advice, diagnosis, or a recommendation to use any specific compound. Always consult a qualified healthcare professional before beginning any peptide protocol. BergdorfBio assumes no liability for the use or misuse of the information presented here.