The Peptide Reference
The Peptide Reference
References
Reference/Tetrapeptide

Epitalon

Synthetic Pineal Tetrapeptide · Telomerase Activator

Human preliminary
research use only

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.

Telomere extension and cellular replicative lifespan extensionEnhanced melatonin productionImproved immune functionPotential lifespan extension (25-33% in animal studies)
01

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.

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.

Evidence profilederived from 6 references
B
Human preliminary
Strongest design among the references on this page. Grade and effect size are separate facts and are never merged into one score.
02

Research indications

What the compound has been studied for, grouped by body system. Effect size is the reported magnitude where it was measured — not a recommendation.

Anti-Aging3
Telomere Extension

Activates telomerase at microgram doses to extend telomeres and cellular replicative lifespan.

Large
Cellular Rejuvenation

Reverses aging markers and improves mitochondrial function at the cellular level.

Large
Lifespan Extension

Animal studies show 25-33% lifespan increases using 30-40mcg/kg doses.

Moderate
Neuroprotection3
Pineal Function Restoration

Restores pineal gland function and circadian melatonin rhythm in elderly.

Moderate
Neurogenesis Support

Supports new neuron formation at nanogram concentrations.

Moderate
Retinal Protection

90% response rate for retinal degeneration at 5mcg per eye dosing.

Moderate
Immunity2
Thymus Regeneration

Supports thymus gland regeneration for improved immune function.

Small
Immune Surveillance

Enhanced immune surveillance and countering of immunosenescence.

Small
i

A large effect in a weak study and a small effect in a strong one are different things. Effect size is never evidence of use in people.

Quick factsreference only
Class
Tetrapeptide
Chain length
4 residues
Molecular weight
390.35 Da
Typical dose
100-500mcg per injection
Frequency
Once daily for 10-20 consecutive days
Cycle length
10-20 days per cycle
Storage
Lyophilized: 2-8°C refrigerated; Reconstituted: 2-8°C refrigerated, use within 30 days
03

Molecular data

Type
Tetrapeptide
Molecular weight
390.35 Da
Chain length
4 residues
Primary sequenceN → C · 4 residues
H₂N–
AAla1
EGlu2
DAsp3
GGly4
–OH
AEDG
NonpolarPolarAcidicBasic
04

Dosing reference

Doses reported in the literature and by suppliers. These are a record of what has been used in research — reference, never instruction.

ContextRouteAmountFrequency
Standard anti-agingSubQ200-500mcg1x daily for 10-20 days
Conservative startSubQ100mcg1x daily for 10-20 days
Russian clinical equivalentSubQ300mcg1x daily for 10-20 days
Ultra-low doseSubQ50mcg1x daily for 10-20 days
Nasal administrationNasal spray1-2mg daily (corrected from traditional 5mg)1x daily for 10-20 days
Oral administrationOral2-3mg2x daily for 10-20 days
05

Interactions

Melatonin

Both work through pineal pathways; may enhance circadian rhythm effects.

synergistic
Thymalin

Enhanced immunomodulation - commonly combined in Russian protocols.

synergistic
NAD+ Precursors

Different anti-aging pathways; complementary mechanisms.

compatible
Growth Hormone Peptides

Different axis activation; no known interactions.

compatible
BPC-157

Different regenerative mechanisms.

compatible
Cortexin

Both are neuroprotective; monitor for cumulative effects.

monitor
Semax/Selank

Different neurocognitive focus.

compatible
Cancer Therapeutics

Telomerase activation may theoretically affect malignancy; avoid with active cancer.

avoid
06

Quality checklist

  • 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
  • !Widespread dosing misinformation exists
  • !Many sources recommend 5-10mg based on translation errors
  • !Original research demonstrates microgram efficacy
  • !Verify supplier credentials carefully
  • ×Yellow or discolored powder (degradation)
  • ×Cloudy solution after mixing (contamination)
  • ×Missing or questionable sourcing documentation
07

What to expect

Days 1-3Subtle energy improvement possible
Days 3-7Better sleep quality, vivid dreams (melatonin effect)
Week 2Enhanced morning energy, mood stability
Week 3-4Skin quality improvements, enhanced wound healing
Months 2-3Laboratory markers may show telomere changes
Long-termCumulative anti-aging benefits with repeated cycles
08

Safety

Commonly reported4
  • Generally well-tolerated with minimal side effects
  • Mild injection site reactions
  • Vivid dreams (melatonin-related)
  • Possible mild digestive upset (oral route)
Stop and seek advice5
  • Signs of allergic reaction
  • Persistent injection site inflammation
  • New or changing moles (monitor skin)
  • Cancer diagnosis (discontinue immediately)
  • Unusual fatigue or weakness
Contraindications4
  • Active malignancy (telomerase activation concern)
  • Chronic sinusitis (nasal route)
  • Known peptide allergies
  • Pregnancy or breastfeeding
09

FAQ

What's the correct Epitalon dosage—why do some sources recommend 5-10mg versus 0.5-1mg?

Peer-reviewed human clinical trials show efficacy at 0.5-1mg daily, while many community protocols recommend 5-10mg based on what appears to be translation errors from animal studies. Original research demonstrates microgram-level activation of telomerase, making lower doses research-supported. Higher doses lack human validation and are significantly more expensive.

Does Epitalon really extend lifespan or is that just animal studies?

Animal studies show 25-33% lifespan extension with Epitalon, and a 6-8 year clinical trial of 266 elderly subjects found a 1.6-1.8 fold mortality reduction with Epithalamin. While impressive, human lifespan extension claims remain theoretical. Effects on cellular aging markers like telomere length are better documented than actual longevity in humans.

Should I worry about Epitalon and cancer risk given telomerase activation?

Telomerase activation theoretically carries cancer risk, which is why Epitalon is contraindicated in active malignancy. However, 35+ years of research shows no increased cancer incidence in clinical trials. The key distinction: Epitalon activates telomerase in normal cells while cancer cells already have telomerase; the mechanism appears selective for aging cells.

How long after an Epitalon cycle do benefits persist?

Effects persist for months after a 10-20 day cycle due to epigenetic changes in gene expression and sustained telomerase activity. Many users repeat cycles 2-3 times yearly with 4-6 month breaks, allowing the body to maintain benefits from each cycle while avoiding continuous stimulation.

10

References

  1. 1
    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.

  2. 2
    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.

  3. 3
    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.

  4. 4
    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.

  5. 5
    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.

  6. 6
    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.

For research use only. Nothing on this page is medical advice, and no number here is a recommendation to dose.