Epithalon dosing & administration
A tiny but mighty four-amino-acid peptide that activates your body's telomerase enzyme—essentially helping your cells hit the 'reset' button on aging by protecting and lengthening the protective caps on your chromosomes [1][2].
Written by Michael Carroll — Owner, Director of Research · Reviewed by the Peptide Initiative Research Team · Editorial standards
Dosing
How much do I take?
Subcutaneous: A small injection into the fatty layer just under the skin — the same way insulin is given.
Bioavailability High — most of the dose reaches your bloodstream, just more gradually than an IV.
5-10 mg
Frequency
Once daily
Duration
10-20 day course, repeated 1-3 times per year
Source class: community practice, not peer-reviewed. No published human study has given the synthetic tetrapeptide Epitalon by subcutaneous or intramuscular injection at any dose. This figure is 10 to 20 times the only systemic human dose reported for the synthetic peptide, which is 0.5 mg per day sublingually [3]. It is often attributed to Khavinson's Russian clinical work, but that work used Epithalamin, the pineal gland extract, rather than the synthetic peptide [6][8].
Timing
Best time to take
Evening injections (1-2 hours before bed) work best for most people since Epithalon supports melatonin production—aligning with your natural sleep cycle makes sense [3].
With food?
Epithalon can be taken regardless of food timing. It doesn't seem to affect absorption either way, so fit it into whatever routine works for you.
If stacking
If stacking with other peptides, inject them at different sites. Epithalon pairs nicely with GHK-Cu for a comprehensive anti-aging approach. Space injections at least 30 minutes apart to track individual effects.
Adjusting your dose
Increase if
- You've completed the starting protocol with zero issues
- Your research goals require extended treatment periods
- You're following a protocol that calls for higher doses under supervision
Decrease if
- You experience persistent headaches beyond the first few days
- Injection site reactions don't resolve within 48 hours
- Sleep quality worsens instead of improves
- Any unexpected or uncomfortable side effects arise
Signs of right dose
- Improved sleep quality and more consistent sleep patterns
- Stable energy levels throughout the day
- No injection site issues beyond initial redness
- General sense of well-being maintained or improved
Administration
How do I use it?
Reconstitution
What you need
Injection
Route
Subcutaneous injection (just under the skin)—the easiest and most common method for self-administration
Best sites
Storage
Before reconstitution
Keep your Epithalon powder in the refrigerator (36-46°F / 2-8°C) for short-term storage or in the freezer (-4°F / -20°C) for long-term storage. Store in the original sealed vial away from light. Properly stored powder can remain stable for 2+ years when frozen.
After reconstitution
Once mixed with bacteriostatic water, refrigerate at 36-46°F (2-8°C). Never freeze the reconstituted solution—freezing destroys the peptide. Keep away from light and use within 21-28 days.
Signs of degradation — discard the vial
Sample daily schedule
Evening (7-9 PM, about 1-2 hours before bed)
5-10 mg depending on protocol injection
Site: Rotate between belly, thigh, and arm
Evening timing aligns with your body's natural melatonin production cycle. Follow a 10-20 day cycle, then take 3-6 months off before repeating. Most research uses 1-2 cycles per year.
Safety
Is it safe?
Side effects
Commonly reported: Injection site redness, Mild headache, Temporary fatigue
Less common: Vivid dreams, Sleep pattern changes
Stop and seek help if
- Any signs of allergic reaction—stop immediately and seek medical help
- Persistent headaches that don't improve after the first week
- Significant sleep disturbances that worsen rather than improve
- Injection site reactions that spread or don't heal
- Any side effect that feels serious or really concerns you
- Your research protocol/cycle is complete
Epithalon is a research compound, not an FDA-approved medication. Never start, stop, or change your dosing without guidance from a qualified healthcare provider. This information is for educational purposes only—not medical advice.
Flagged pairings
- Immunosuppressants (cyclosporine, tacrolimus) — Epithalon supports immune function, which could potentially counteract immunosuppressive therapy. Consult your doctor.
- Sleep medications (Ambien, benzodiazepines) — Epithalon increases melatonin production, which could compound sedative effects. Use caution and inform your doctor.
Published research
What the studies show
Khavinson VKh, Bondarev IE, Butyugov AA · 2003
This foundational study showed that Epithalon activates telomerase (the enzyme that rebuilds telomeres) in human fibroblast cells that normally don't have active telomerase. The cells actually grew telomeres longer—suggesting the possibility of extending cellular lifespan.
Al-Dulaimi S, Thomas R, Matta S, Roberts T · 2025
This recent study confirmed that Epithalon extends telomeres in normal human cells by increasing telomerase activity. Importantly, in normal cells the effect worked through safe telomerase pathways, while cancer cells used a different mechanism—suggesting Epithalon may be safe for healthy cells.
Araj SK, Brzezik J, Mądra-Gackowska K, Szeleszczuk Ł · 2025
This comprehensive review summarized 25 years of Epithalon research, confirming its effects on melatonin synthesis, telomerase activity, and multiple enzymes. It's one of the broadest-reaching peptides studied in longevity science.
Khavinson VKh, Kopylov AT, Vaskovsky BV, et al. · 2017
Researchers confirmed that the AEDG sequence (Epithalon) naturally exists in the pineal gland's polypeptide complex. This validated that Epithalon isn't just a synthetic invention—it's based on a naturally occurring peptide your body already uses.
Gatta M, Dovizio M, Milillo C, et al. · 2025
Epithalon restored impaired wound healing in cells damaged by high glucose (simulating diabetes). It worked by reducing oxidative stress and preventing harmful cellular changes, showing its potential beyond just telomere effects.
Khavinson VKh, Morozov VG · 2003
Thymalin (thymic) and Epithalamin (pineal) peptide preparations were assessed in 266 elderly people over 6-8 years, with the preparations given during the first 2-3 years. Mortality fell 2.0-2.1-fold in the Thymalin group, 1.6-1.8-fold in the Epithalamin group, and 2.5-fold with both. A separate group given both annually for 6 years showed a 4.1-fold decrease against control. This study used Epithalamin, the pineal gland extract, not the synthetic tetrapeptide Epitalon.
Labunets IF, Butenko GM, Khavinson VKh, Magdich LV, Dragunova VA, Pishel' IN, Azarskova MV · 2003
In aging CBA mice, long-term administration of the pineal preparation epithalamin increased stromal precursor, CD4+ and Mac-1+ cells in old bone marrow, improved migration of T-cell precursors from bone marrow to the thymus, and shifted thymic and splenic T-cell populations back toward the pattern seen in adult mice. The authors also reported that Epithalon increased thymic endocrine function. This is animal research, not human data.
Korkushko OV, Khavinson VKh, Shatilo VB, Antonyuk-Shcheglova IA · 2006
A 12-year randomised clinical study of epithalamine — the pineal gland peptide preparation, not the synthetic tetrapeptide — in elderly patients with coronary disease and accelerated cardiovascular aging. After 12 years the number of deaths in the epithalamine group was 28% lower than in the control group on the same basic therapy. Cardiovascular mortality was 2-fold lower, as was the incidence of cardiovascular failure and respiratory disease.
Korkushko OV, Khavinson VKh, Shatilo VB, Antonyk-Sheglova IA · 2011
A randomized comparative study in which 39 elderly coronary patients received six courses of epithalamin over three years in addition to basic therapy, with 40 controls on basic therapy alone, followed for 15 years. Treated patients showed slower cardiovascular aging, preserved physical endurance, normalized melatonin circadian rhythm, and significantly lower mortality. The published report presents efficacy outcomes and does not itemize adverse events.
Korkushko OV, Lapin BA, Goncharova ND, Khavinson VKh, Shatilo VB, Vengerin AA, Antoniuk-Shcheglova IA, Magdich LV · 2007
Pineal peptide preparations — epithalamin and the synthetic tetrapeptide Epitalon — restored night-time melatonin release and normalized the melatonin circadian rhythm in old monkeys and elderly people. The authors concluded that these preparations raise melatonin concentration without side effects and can be used in clinical geriatric practice.
Khavinson V, Diomede F, Mironova E, Linkova N, Trofimova S, Trubiani O, Caputi S, Sinjari B · 2020
In human gingival mesenchymal stem cells, the AEDG peptide (Epitalon) increased mRNA expression of the neuronal differentiation markers Nestin, GAP43, beta-tubulin III and Doublecortin by roughly 1.6-1.8 times. Molecular modelling indicated the peptide binds linker histones H1/3 and H1/6 at sites that interact with DNA, which the authors propose as an epigenetic mechanism for the increased transcription of neuronal differentiation genes.
Shay JW, Bacchetti S · 1997
A survey of published data covering essentially all major types of human cancer found telomerase activity present in the large majority of cases. Normal human somatic tissues generally keep the enzyme repressed, which is the contrast that makes telomerase activity a common feature of cancer cells.
Head to head
Epithalon compared
Want the full picture?
The complete Epithalon research profile: mechanism of action, clinical studies, effectiveness timeline, and FAQ.