Peptide Comparison
EpithalonvsOvagen
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.
Hepatoprotective tripeptide bioregulator (Glu-Asp-Leu) that penetrates hepatocyte nuclei to bind DNA in the minor groove at AT-rich promoter regions, upregulates antioxidant enzymes (SOD, glutathione peroxidase, GST) beyond melatonin's capacity, and supports liver regeneration through epigenetic activation of hepatocyte proliferation and anti-fibrotic gene programs
At a Glance
Quick
comparison
Dose Range
Epithalon
5–10 mg
Ovagen
10–10 mg
Frequency
Epithalon
Once daily
Ovagen
Multiple times daily
Administration
Epithalon
Subcutaneous injection
Ovagen
Oral (capsule — standard formulation)
Cycle Length
Epithalon
4-6 weeks
Ovagen
8-12 weeks
Onset Speed
Epithalon
Gradual (3-4 weeks)
Ovagen
Gradual (3-4 weeks)
Evidence Level
Epithalon
Limited human trials
Ovagen
Limited human trials
Efficacy
Benefit
ratings
Telomere Protection
Sleep Quality
Cellular Longevity
Anti-Aging
Healing & Recovery
Metabolic
Technical Data
Compound
specifications
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
Ovagen
Molecular Formula
C15H25N3O8
Molecular Weight
375.4 g/mol
Half-Life
Short plasma half-life typical of tripeptides; biological effects persist for weeks through epigenetic modifications to hepatic gene expression; metabolized to constituent amino acids (glutamic acid, aspartic acid, leucine)
Bioavailability
Effective via oral capsule (10 mg twice daily), sublingual liquid (0.1 mg/mL), and subcutaneous injection routes; penetrates cell membranes and nuclear membranes as a cell-penetrating peptide; tissue-specific activity demonstrated in organotypic hepatic cultures at 10⁻⁶ to 10⁻⁹ M
CAS Number
Not assigned (proprietary Khavinson peptide)
Protocols
Dosing
tiers
Epithalon
Ovagen
Applications
Best
suited for
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.
Ovagen
Supporting liver function and hepatoprotection in aging individuals
Ovagen is particularly well-suited for individuals focused on supporting liver function and hepatoprotection in aging individuals. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Comprehensive Khavinson bioregulator protocols targeting hepatic aging and metabolic health
Ovagen is particularly well-suited for individuals focused on comprehensive khavinson bioregulator protocols targeting hepatic aging and metabolic health. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Recovery support after hepatic injury or liver disease
Ovagen is particularly well-suited for individuals focused on recovery support after hepatic injury or liver disease. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Geroprotective therapy for maintaining liver regenerative capacity during aging
Ovagen is particularly well-suited for individuals focused on geroprotective therapy for maintaining liver regenerative capacity during aging. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Safety Profile
Side
effects
Epithalon
Common
- Injection site redness
- Mild headache
- Temporary fatigue
Uncommon
- Vivid dreams
- Sleep pattern changes
Serious
- Allergic reaction
Ovagen
Common
- Mild digestive discomfort
- Mild fatigue
- Mild headache
- Minor appetite changes
Uncommon
- Mild nausea
Serious
- No documented serious adverse effects
Research Status
Safety
& evidence
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
Ovagen
Evidence Level
Limited human trials
FDA Status
Research compound
Safety Overview
Ovagen demonstrates favorable safety in reproductive endocrinology applications with no serious adverse events reported in clinical ovulation induction studies. As a kisspeptin analog, primary safety consideration is ovarian hyperstimulation syndrome (OHSS) risk, requiring careful hormone monitoring and patient education on abdominal pain, bloating, and nausea symptoms. Mild headaches and injection site reactions occur in <10% of users. Reproductive safety in animal models shows normal fetal development with no teratogenicity.
Contraindications
- xKnown hypersensitivity to peptide bioregulators or constituent amino acids (glutamic acid, aspartic acid, leucine)
- xPregnancy and breastfeeding — insufficient reproductive safety data
- xSevere glutamic acid metabolism disorders (extremely rare)
- xActive autoimmune hepatitis in flare without physician supervision
Decision Guide
Which is
right for you?
Choose Epithalon if...
- Longevity and healthy aging
- Cellular rejuvenation
- Sleep quality improvement
- Antioxidant support
Choose Ovagen if...
- Supporting liver function and hepatoprotection in aging individuals
- Comprehensive Khavinson bioregulator protocols targeting hepatic aging and metabolic health
- Recovery support after hepatic injury or liver disease
- Geroprotective therapy for maintaining liver regenerative capacity during aging