Palmitoyl Tetrapeptide-7 vs Livagen
Side-by-side comparison of key properties, dosing, and research.
Skin & Cosmetic
Palmitoyl Tetrapeptide-7Anti-Aging & Longevity
Livagen- Summary
- 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.
- 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.
- Half-Life
- Topical penetration-dependent; effects last hours to days
- Short (minutes); gene-regulatory effects are sustained
- Admin Route
- Topical
- SubQ, Oral
- Research
- —
- —
- Typical Dose
- 2-5 ppm concentration in formulation
- 10 mg per day
- Frequency
- Twice daily
- Daily for 10–30 days
- Key Benefits
- 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
- 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
- Side Effects
- Contact sensitization (rare)
- Well-tolerated at standard concentrations
- Generally well tolerated
- Mild injection site reactions
- No significant hepatotoxic effects reported at standard doses
- Stacks With
- —
- —