Livagen vs Palmitoyl Tetrapeptide-7
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & Longevity
LivagenSkin & Cosmetic
Palmitoyl Tetrapeptide-7- Summary
- Livagen is a dipeptide bioregulator (Lys-Glu) developed by Professor Vladimir Khavinson, tissue-specific for the liver and thymus. It supports hepatocyte function, promotes liver cell regeneration, and modulates immune function via thymic activity. Research suggests benefits in chronic liver disease, hepatic aging, and immune restoration following liver damage.
- Palmitoyl Tetrapeptide-7 (Rigin) is a cosmetic peptide consisting of palmitic acid linked to the tetrapeptide sequence GQPR (Gly-Gln-Pro-Arg). It was designed to mimic the biological activity of the IgG immunoglobulin C-terminus, which downregulates the production of interleukin-6 (IL-6), a key driver of skin aging and inflammation.
- Half-Life
- Short (minutes); gene-regulatory effects are sustained
- Topical penetration-dependent; effects last hours to days
- Admin Route
- SubQ, Oral
- Topical
- Research
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- Typical Dose
- 10 mg per day
- 2-5 ppm concentration in formulation
- Frequency
- Daily for 10–30 days
- Twice daily
- Key Benefits
- Supports hepatocyte regeneration and liver tissue repair
- Normalizes liver cell protein synthesis
- Immune modulation via thymic activity
- Potential benefits in chronic hepatitis and liver aging
- Anti-aging effects on hepatic tissue
- May support liver recovery after toxic insult or alcohol damage
- Complementary to NAD+ and glutathione in liver health protocols
- Reduces IL-6 inflammatory cytokine in skin
- Prevents 'inflammaging' of the skin
- Inhibits MMP collagen-degrading enzymes
- Synergistic with Matrixyl for anti-aging
- Clinically tested for wrinkle and skin texture improvement
- Well-tolerated topically
- Side Effects
- Generally well tolerated
- Mild injection site reactions
- No significant hepatotoxic effects reported at standard doses
- Contact sensitization (rare)
- Well-tolerated at standard concentrations
- Stacks With
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