New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareThymulin vs Ovagen

Thymulin vs Ovagen

Side-by-side comparison of key properties, dosing, and research.

Immune Support
Thymulin
Anti-Aging & Longevity
Ovagen
Summary
Thymulin is a nonapeptide hormone produced exclusively by the thymic epithelium. It requires zinc for biological activity and plays a critical role in T-lymphocyte maturation, differentiation, and immune regulation. Thymulin levels decline dramatically with age, contributing to immunosenescence.
Ovagen is a tripeptide bioregulator (Glu-Asp-Leu) developed by Professor Vladimir Khavinson, primarily targeting liver tissue. It supports hepatocyte function, liver cell regeneration, and protection against hepatic aging and disease. Ovagen is used in protocols for chronic liver disease, hepatoprotection, and metabolic liver conditions including fatty liver disease.
Half-Life
~30 minutes active half-life
Short (minutes); sustained gene-regulatory effects
Admin Route
SubQ
SubQ, Oral
Research
Typical Dose
20-30 mcg
10 mg per day
Frequency
10 days per month (Khavinson protocol)
Daily for 10–30 days
Key Benefits
  • Enhances T-cell maturation and differentiation
  • Boosts NK cell cytotoxic activity
  • Reduces inflammatory cytokine production (TNF-α, IL-1)
  • Anti-nociceptive (pain-reducing) properties
  • Restores age-related immune decline
  • Anti-inflammatory via serotonin pathway modulation
  • Hepatoprotective effects against toxic, viral, and metabolic liver damage
  • Promotes hepatocyte regeneration and liver tissue repair
  • May reduce liver fibrosis progression
  • Supports liver metabolic function and detoxification capacity
  • Anti-aging effects on hepatic tissue
  • Useful in NAFLD/MASH supportive protocols
  • Compatible with NAD+, glutathione, and BPC-157 in liver health stacks
Side Effects
  • Injection site reactions
  • Mild fatigue initially as immune system activates
  • Generally well tolerated
  • Mild injection site reactions
  • No clinically significant hepatotoxicity reported
Stacks With