Epitalon
Also known as: Epithalon, AEDG, Endoluten
Synthetic Pineal Tetrapeptide | Telomerase Activator
Overview
Epitalon is a synthetic tetrapeptide developed by Russian scientist Vladimir Khavinson with 35+ years of research. It activates telomerase at extremely low concentrations to maintain telomere length, stimulates melatonin production, and modulates gene expression through epigenetic mechanisms.
Key benefits
- Telomere extension and cellular replicative lifespan extension
- Enhanced melatonin production
- Improved immune function
- Potential lifespan extension (25-33% in animal studies)
- Systemic anti-aging through cellular rejuvenation
- Short cycle duration with long-lasting effects
Mechanism of action
Activates telomerase at extremely low concentrations (10⁻¹⁷ to 10⁻¹⁵ M) to maintain telomere length, stimulates melatonin production from the pineal gland, and modulates gene expression through epigenetic mechanisms.
Molecular data
- Type
- Tetrapeptide
- Half-life
- Not established (short peptide)
Sequence
Ala-Glu-Asp-Gly
Indications
What the research community uses this compound for, with self-reported effectiveness.
Anti-Aging
Telomere Extension
Most effectiveActivates telomerase at microgram doses to extend telomeres and cellular replicative lifespan.
Cellular Rejuvenation
Most effectiveReverses aging markers and improves mitochondrial function at the cellular level.
Lifespan Extension
EffectiveAnimal studies show 25-33% lifespan increases using 30-40mcg/kg doses.
Neuroprotection
Pineal Function Restoration
EffectiveRestores pineal gland function and circadian melatonin rhythm in elderly.
Neurogenesis Support
EffectiveSupports new neuron formation at nanogram concentrations.
Retinal Protection
Effective90% response rate for retinal degeneration at 5mcg per eye dosing.
Immunity
Thymus Regeneration
ModerateSupports thymus gland regeneration for improved immune function.
Immune Surveillance
ModerateEnhanced immune surveillance and countering of immunosenescence.
Dosing protocols
Common protocols by delivery method. Adjust the curve below to model accumulation in your own cycle.
Injectable
Subcutaneous injection is the primary and most researched route. Short cycles of 10-20 days with 4-6 month breaks between cycles.
| Protocol | Dose | Frequency | Route / duration |
|---|---|---|---|
| Standard anti-aging | 200-500mcg | 1x daily for 10-20 days | SubQ |
| Conservative start | 100mcg | 1x daily for 10-20 days | SubQ |
| Russian clinical equivalent | 300mcg | 1x daily for 10-20 days | SubQ |
| Ultra-low dose | 50mcg | 1x daily for 10-20 days | SubQ |
Preparation
You will need
- Epitalon lyophilized powder vial (typically 10mg)
- Bacteriostatic water (5mL creates 2mg/mL)
- Insulin syringes (0.3mL for accurate microgram dosing)
- Alcohol swabs
- Sterile work surface
Steps
- Clean vial tops with alcohol swabs
- Add 5mL bacteriostatic water to 10mg vial (creates 2mg/mL)
- Inject water slowly at vial side wall
- Gently swirl - do not shake vigorously
- Solution should be clear and colorless
- Refrigerate immediately
- Use 0.3mL insulin syringes for accurate microgram dosing
- Use within 30 days of reconstitution
Work out the water volume and syringe units in the reconstitution calculator →
Nasal
Intranasal spray offers non-invasive administration with potentially faster absorption, though less research data available.
| Protocol | Dose | Frequency | Route / duration |
|---|---|---|---|
| Nasal administration | 1-2mg daily (corrected from traditional 5mg) | 1x daily for 10-20 days | Nasal spray |
Oral
Oral administration has reduced bioavailability due to digestive breakdown. Less predictable effects compared to injectable.
| Protocol | Dose | Frequency | Route / duration |
|---|---|---|---|
| Oral administration | 2-3mg | 2x daily for 10-20 days | Oral |
Protocol variations
Alternative cycling patterns reported in the literature and community.
Research-Based Low Dose
Based on actual human clinical trials, including a study of 75 women using 0.5mg/day sublingually for 20 days. Animal studies typically used 0.1-10mcg/mouse/day. This approach prioritizes evidence-based dosing over anecdotal community protocols.
High-Dose Community Protocol
Widely circulated protocol recommending 5-10mg daily injections. This dosing lacks peer-reviewed human clinical data and may stem from translation errors of Russian research or extrapolation from other peptides. No published studies validate this dose range in humans.
Interactions
Pairwise interactions with other compounds you might be cycling — the same data behind the cycle builder's safety check.
Cancer Therapeutics
AvoidTelomerase activation may theoretically affect malignancy; avoid with active cancer.
Cortexin
MonitorBoth are neuroprotective; monitor for cumulative effects.
Melatonin
SynergisticBoth work through pineal pathways; may enhance circadian rhythm effects.
Thymalin
SynergisticEnhanced immunomodulation - commonly combined in Russian protocols.
NAD+ Precursors
CompatibleDifferent anti-aging pathways; complementary mechanisms.
Growth Hormone Peptides
CompatibleDifferent axis activation; no known interactions.
BPC-157
CompatibleDifferent regenerative mechanisms.
Semax/Selank
CompatibleDifferent neurocognitive focus.
Timeline
Typical week-by-week effects reported in clinical and observational data.
- Days 1-3
Subtle energy improvement possible
- Days 3-7
Better sleep quality, vivid dreams (melatonin effect)
- Week 2
Enhanced morning energy, mood stability
- Week 3-4
Skin quality improvements, enhanced wound healing
- Months 2-3
Laboratory markers may show telomere changes
- Long-term
Cumulative anti-aging benefits with repeated cycles
Safety
Reported adverse effects, contraindications, and what to monitor on cycle.
Common side effects
- Generally well-tolerated with minimal side effects
- Mild injection site reactions
- Vivid dreams (melatonin-related)
- Possible mild digestive upset (oral route)
Stop signs — stop and seek advice
- Signs of allergic reaction
- Persistent injection site inflammation
- New or changing moles (monitor skin)
- Cancer diagnosis (discontinue immediately)
- Unusual fatigue or weakness
Contraindications
- Active malignancy (telomerase activation concern)
- Chronic sinusitis (nasal route)
- Known peptide allergies
- Pregnancy or breastfeeding
Monitoring
- Skin changes and mole monitoring
- Sleep quality assessment
- Energy levels
- Optional: telomere length testing before/after cycles
Quality checks
What a legitimate product looks like, what should give pause, and what should make you stop.
Good signs
- White to off-white lyophilized powder
- Clear, colorless solution when reconstituted
- Certificate of analysis available (>98% purity)
- Medical-grade pharmaceutical appearance
- Proper cold-chain shipping
Warning signs
- Widespread dosing misinformation exists
- Many sources recommend 5-10mg based on translation errors
- Original research demonstrates microgram efficacy
- Verify supplier credentials carefully
Stop signs — don't use
- Yellow or discolored powder (degradation)
- Cloudy solution after mixing (contamination)
- Missing or questionable sourcing documentation
Recent research
Newer papers and trial readouts on file for this compound, with source and date.
June 2025 · Biogerontology
Epitalon increases telomere length in human cell lines through telomerase upregulation or ALT activity
Comprehensive study providing quantitative data on epitalon's telomere-lengthening mechanisms. Demonstrated both telomerase upregulation and alternative lengthening of telomeres (ALT) activation in multiple human cell lines, with PML body colocalization confirming ALT pathway.
March 2025 · Molecules
Overview of Epitalon - Highly Bioactive Pineal Tetrapeptide with Promising Properties
Comprehensive review of 25+ years of epitalon research highlighting geroprotective and neuroendocrine effects including antioxidant, neuroprotective, and antimutagenic properties. Confirmed direct influence on melatonin synthesis, IL-2 mRNA levels, and telomerase activity.
June 2025 · Pharmaceutics
The Antioxidant Tetrapeptide Epitalon Enhances Delayed Wound Healing in an in Vitro Model of Diabetic Retinopathy
Epitalon shows promise as a therapeutic strategy for diabetic retinopathy, improving retinal wound healing compromised by hyperglycemia in an in vitro model.
References
Primary literature and clinical-trial data informing this entry.
Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells
Khavinson VKh, Bondarev IE, Butyugov AA · Bulletin of Experimental Biology and Medicine · 2003
Addition of epithalon to telomerase-negative human fetal fibroblast culture induced expression of catalytic subunit (hTERT), enzymatic activity of telomerase, and telomere elongation. Extended replicative lifespan of cells.
Peptides of pineal gland and thymus prolong human life
Khavinson VKh, Morozov VG · Neuroendocrinology Letters · 2003
Clinical trial of 266 elderly subjects over 6-8 years: Epithalamin reduced mortality 1.6-1.8 fold. Combined Thymalin + Epithalamin treatment for 6 years reduced mortality 4.1-fold vs control with improved cardiovascular and immune parameters.
Synthetic tetrapeptide epitalon restores disturbed neuroendocrine regulation in senescent monkeys
Khavinson VKh, Goncharova ND, Lapin BA · Neuroendocrinology Letters · 2001
Epitalon significantly stimulated melatonin synthesis in senescent monkeys during evening hours, normalizing circadian rhythm of cortisol secretion and restoring neuroendocrine regulation.
Pineal-regulating tetrapeptide epitalon improves eye retina condition in retinitis pigmentosa
Khavinson VKh, Razumovsky MI, Trofimova SV, Grigoryan RA, Kharitonova OA · Neuroendocrinology Letters · 2002
Epitalon therapy in patients with degenerative retinal lesions resulted in positive clinical effect in 90% of cases, intensifying bioelectric and functional activity of retina due to preservation of morphological structure.
Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice
Anisimov VN, Khavinson VKh, Popovich IG, Zabezhinski MA, Alimova IN, Rosenfeld SV, Zavarzina NY, Semenchenko AV, Yashin AI · Biogerontology · 2003
Epitalon injected from 3 months until natural death increased maximum lifespan by 12.3% and last 10% survivors by 13.3%. Slowed age-related estrous function decline and reduced chromosome aberrations by 17.1%. Inhibited leukemia development 6-fold.
AEDG Peptide (Epitalon) Stimulates Gene Expression and Protein Synthesis during Neurogenesis: Possible Epigenetic Mechanism
Khavinson VKh, Diomede F, Mironova E, Linkova N, Trofimova S, Trubiani O, Marconi GD, Paiushina O · Molecules · 2020
AEDG peptide increased neurogenic differentiation markers (Nestin, GAP43, β-Tubulin III, Doublecortin) 1.6-1.8 fold in human gingival mesenchymal stem cells. Molecular modelling showed preferential binding with H1/6 and H1/3 histones, suggesting epigenetic regulation.
Last updated . How this page was sourced is described in the methodology.