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

Get it free
ToolsCompareOvagen vs PGPIPN

Ovagen vs PGPIPN

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

Anti-Aging & Longevity
Ovagen
Immune Support
PGPIPN
Summary
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.
PGPIPN is a bioactive hexapeptide (Pro-Gly-Pro-Ile-Pro-Asn) derived from beta-casein during enzymatic digestion. It exhibits anti-inflammatory properties via opioid receptor modulation and cytokine suppression, making it relevant for gut health, systemic inflammation, and as a component of casein-derived functional foods.
Half-Life
Short (minutes); sustained gene-regulatory effects
Estimated 30-120 minutes (peptide degradation)
Admin Route
SubQ, Oral
Oral, Subcutaneous (research)
Research
Typical Dose
10 mg per day
200-500 mg per day
Frequency
Daily for 10–30 days
Once or twice daily
Key Benefits
  • 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
  • Anti-inflammatory effects via cytokine suppression
  • Gut mucosal protection and intestinal barrier support
  • Opioid receptor modulation for gut motility regulation
  • Potential analgesic activity via central and peripheral opioid pathways
  • Explored for inflammatory bowel conditions and gut dysbiosis
  • Natural origin (food-derived) with favorable safety profile
Side Effects
  • Generally well tolerated
  • Mild injection site reactions
  • No clinically significant hepatotoxicity reported
  • Generally very well-tolerated given food-derived origin
  • Theoretical opioid-mediated constipation at high doses
  • Rare milk protein allergy in casein-sensitive individuals
Stacks With