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Specimen Atlas of Research Peptides81 plates · MIT
Side-by-side · Research reference

EpitalonvsLivagen

Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.

AHuman-MechanisticAUTO-DRAFTED8/37 cited
BAnimal-StrongHUMAN-REVIEWED20/32 cited
Epitalon
Pineal bioregulator · Telomerase activator
5–10 mgPer cycle doseKhavinson 2003
HumanMechanisticKhavinson 2003
HoursHalf-life (est)
SQ or IM · Abdomen · Daily for 10–20 days
Livagen
Khavinson Bioregulator · Hepatoprotective Tetrapeptide
50%Dipeptidase inhibitionTimofeeva 2005
Oral / SQRoutes tested
LiverTarget tissueKhavinson 2001
Oral or SQ · Tissue-specific to liver

01Mechanism of Action

Parameter
Epitalon
Livagen
Primary target
Telomerase activity (proposed); pineal melatonin axis modulationKhavinson 2003
Hepatocyte protein synthesis machineryBrodskiĭ 2001
Pathway
Activation of telomerase reverse transcriptase (hTERT) in somatic cells; pineal-axis modulation supports endogenous melatoninKhavinson 2003
Tissue-specific bioregulator → Hepatocyte stimulation → Protein synthesis normalizationBrodskiĭ 2001Khavinson 2001
Downstream effect
Telomere elongation, improved sleep architecture, reported lifespan extension in aged miceKhavinson 2003
Age-dependent enzyme normalization, hepatoprotection in fibrosis/hepatitis models, elevated protein synthesis in senescent hepatocytes
Feedback intact?
Origin
Synthetic 4-AA peptide derived from epithalamin (a natural pineal extract)Khavinson 2003
Directed chemical synthesis from amino acid analysis of liver polypeptide preparations (Ventvil)
Antibody development

02Dosage Protocols

Parameter
Epitalon
Livagen
Standard dose
5–10 mg / day for 10–20 days, 1–2× per yearKhavinson 2003
Anecdotal community protocol. Russian clinical literature uses similar cycling.
Frequency
Once daily during a cycle
Lower / starter dose
2.5 mg / day
Evidence basis
In-vitro telomerase + Russian clinical trialsKhavinson 2003
Animal models (rats, 1–24 months age); in vitro hepatocyte cultureTimofeeva 2005Brodskiĭ 2001Khavinson 2002
Duration
10–20 day cycles, 1–2× per year
Reconstitution
Bacteriostatic water
Timing
Pre-sleep preferred (pineal alignment)
Half-life
Hours (estimated)
Animal dose (oral)
Not specified in abstracts; 2-week administration protocolTimofeeva 2005
Per os administration in rats.
Duration (experimental)
2 weeks (enzyme study); up to 24 months (cell culture)Timofeeva 2005Brodskiĭ 2001
Route
Oral or subcutaneous
Resists peptidase hydrolysis, enabling oral bioavailability.Timofeeva 2005
Human data
None in provided literature

04Side Effects & Safety

Parameter
Epitalon
Livagen
Injection site reaction
Mild irritation
Sleep architecture
Improved subjective sleep quality (anecdotal)
Cancer risk
Theoretical via telomerase activation in pre-malignant cells
Long-term safety
Limited Western RCT data
Pregnancy / OB
Avoid
Antibody formation
Not reported
Reported adverse effects
None documented in animal studies
Human safety data
No human trials in provided literature
Peptide hydrolysis
Weakly hydrolyzed; minimal breakdown by intestinal enzymesTimofeeva 2005
Absolute Contraindications
Epitalon
  • ·Pregnancy / breastfeeding
  • ·Active malignancy or pre-malignant state
Livagen
Relative Contraindications
Epitalon
  • ·Family history of cancer
Livagen

05Administration Protocol

Parameter
Epitalon
Livagen
1. Reconstitution
Add 1–2 mL bacteriostatic water to 10 mg vial → 5–10 mg/mL.
Oral administration supported by peptidase resistance. Subcutaneous route used in organotypic culture experiments.Timofeeva 2005Khavinson 2001
2. Injection site
SQ — abdomen preferred. Rotate sites.
No specific timing documented. Two-week protocols used in animal models with daily administration.Timofeeva 2005
3. Timing
Pre-sleep preferred to align with pineal axis.
Elderly individuals may exhibit different enzyme normalization patterns than younger cohorts, based on rat age-stratified findings.Timofeeva 2005
4. Storage
Lyophilised: room temp, light-protected. Reconstituted: refrigerate ≤30 days.
5. Needle
29–31G, 4–8 mm insulin syringe.