Peptide Comparison
LivagenvsEpithalon
Tetrapeptide bioregulator (Lys-Glu-Asp-Ala) that directly penetrates cell nuclei and binds double-stranded DNA to induce chromatin decondensation in senescent lymphocytes, activate ribosomal genes, inhibit enkephalin-degrading enzymes with an IC50 of 20 μM, and restore protein synthesis capacity in aging cells through selective epigenetic remodeling
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.
At a Glance
Quick
comparison
Dose Range
Livagen
2–10 mg
Epithalon
5–10 mg
Frequency
Livagen
Once daily
Epithalon
Once daily
Administration
Livagen
Intramuscular injection
Epithalon
Subcutaneous injection
Cycle Length
Livagen
8-12 weeks
Epithalon
4-6 weeks
Onset Speed
Livagen
Gradual (3-4 weeks)
Epithalon
Gradual (3-4 weeks)
Evidence Level
Livagen
Limited human trials
Epithalon
Limited human trials
Efficacy
Benefit
ratings
Cell Renewal
Liver Support
DNA Protection
Telomere Protection
Sleep Quality
Cellular Longevity
Technical Data
Compound
specifications
Livagen
Molecular Formula
C18H31N5O9
Molecular Weight
461.5 g/mol
Half-Life
Short plasma half-life typical of tetrapeptides; biological effects persist for weeks through epigenetic chromatin remodeling modifications; metabolized to constituent amino acids (lysine, glutamic acid, aspartic acid, alanine)
Bioavailability
Resistant to intestinal proteolysis when administered orally (weakly hydrolyzed by intestinal peptidases); efficient absorption from intramuscular injection sites; penetrates cytoplasmic and nuclear membranes to reach cell nuclei and nucleoli
CAS Number
Not assigned (research compound)
Epithalon
Molecular Formula
C14H22N4O9
Molecular Weight
390.35 g/mol
Half-Life
2-4 hours (estimated)
Bioavailability
High when injected subcutaneously
CAS Number
307297-39-8
Protocols
Dosing
tiers
Livagen
Epithalon
Applications
Best
suited for
Livagen
Comprehensive geroprotective therapy targeting epigenetic chromatin remodeling in aging cells
Livagen is particularly well-suited for individuals focused on comprehensive geroprotective therapy targeting epigenetic chromatin remodeling in aging cells. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Supporting liver function and hepatoprotection in the context of aging
Livagen is particularly well-suited for individuals focused on supporting liver function and hepatoprotection in the context of aging. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Restoring protein synthesis and ribosomal function in elderly individuals
Livagen is particularly well-suited for individuals focused on restoring protein synthesis and ribosomal function in elderly individuals. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Khavinson bioregulator protocols for anti-aging and longevity
Livagen is particularly well-suited for individuals focused on khavinson bioregulator protocols for anti-aging and longevity. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Epithalon
Longevity Enthusiasts
If you're serious about healthy aging and want to support your cells at the deepest level, Epithalon targets one of the fundamental mechanisms of cellular aging—telomere shortening. It's like giving your cells' protective caps a little extra reinforcement.
Sleep Quality Seekers
Epithalon helps regulate melatonin production by supporting your pineal gland. Many users report better sleep quality and more consistent sleep-wake cycles, especially those who've noticed their sleep getting worse with age.
Those Concerned About Oxidative Stress
Beyond its telomere effects, Epithalon acts as an antioxidant. If you're exposed to environmental stressors, have a demanding lifestyle, or simply want extra cellular protection, this peptide offers multiple mechanisms of support.
Immune System Support (Age-Related)
As we age, our immune system naturally weakens—a process called immunosenescence. Research suggests Epithalon may help maintain immune function by supporting the thymus and immune cell health, potentially keeping your defenses stronger as you age.
Safety Profile
Side
effects
Livagen
Common
- Injection site reaction
- Mild fatigue
- Mild headache
- Digestive enzyme changes
Uncommon
- Transient flu-like symptoms
Serious
- No documented serious adverse effects
Epithalon
Common
- Injection site redness
- Mild headache
- Temporary fatigue
Uncommon
- Vivid dreams
- Sleep pattern changes
Serious
- Allergic reaction
Research Status
Safety
& evidence
Livagen
Evidence Level
Limited human trials
FDA Status
Research compound
Safety Overview
Livagen (a liver-derived peptide extract) carries a safety profile established through decades of use in Eastern European hepatology and gastroenterology clinics. As an organ-derived extract rather than a synthetic single peptide, it contains multiple bioactive components promoting hepatocyte regeneration and cytoprotection. Adverse events are minimal in reported clinical experience—mild gastrointestinal upset occurring in <5% of patients. The compound shows no hepatotoxicity, nephrotoxicity, or immunosensitization in available safety surveillance data from thousands of patients.
Contraindications
- xKnown hypersensitivity to peptide bioregulators or constituent amino acids (lysine, glutamic acid, aspartic acid, alanine)
- xPregnancy and breastfeeding — insufficient reproductive safety data
- xActive autoimmune conditions in flare without physician supervision
- xConcurrent use of opioid medications — Livagen's enkephalinase inhibition may alter opioid metabolism
Epithalon
Evidence Level
Limited human trials
FDA Status
Research compound
Safety Overview
Epithalon has shown a favorable safety profile across decades of research, primarily conducted in Russia. Studies spanning up to 15 years of follow-up have reported no severe adverse events in older adults using Epithalon or its natural precursor Epithalamin. The peptide appears well-tolerated with minimal side effects, mostly limited to mild injection site reactions. However, large-scale clinical trials outside of Russia are still needed.
Contraindications
- xPregnancy or planning to become pregnant
- xCurrently breastfeeding
- xActive cancer or history of cancer
- xKnown allergy to peptide components
- xChildren and adolescents
Decision Guide
Which is
right for you?
Choose Livagen if...
- Comprehensive geroprotective therapy targeting epigenetic chromatin remodeling in aging cells
- Supporting liver function and hepatoprotection in the context of aging
- Restoring protein synthesis and ribosomal function in elderly individuals
- Khavinson bioregulator protocols for anti-aging and longevity
Choose Epithalon if...
- Longevity and healthy aging
- Cellular rejuvenation
- Sleep quality improvement
- Antioxidant support