Epithalon vs Palmitoyl Tetrapeptide-7
Side-by-side comparison of key properties, dosing, and research.
Anti-Aging & Longevity
EpithalonSkin & Cosmetic
Palmitoyl Tetrapeptide-7- Summary
- Epithalon is a synthetic tetrapeptide developed from the pineal gland extract Epithalamin by Russian scientist Dr. Vladimir Khavinson. It is one of the most researched longevity peptides, known for activating telomerase and extending telomere length — the molecular hallmarks of cellular aging.
- 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
- 2–4 hours
- Topical penetration-dependent; effects last hours to days
- Admin Route
- SubQ, Sublingual
- Topical
- Research
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- Typical Dose
- 5–10 mg total per cycle
- 2-5 ppm concentration in formulation
- Frequency
- 0.5–1 mg daily
- Twice daily
- Key Benefits
- Activates telomerase enzyme, extending telomere length
- May slow cellular and biological aging
- Regulates melatonin production and circadian rhythms
- Improves sleep quality
- Powerful antioxidant properties
- May reduce incidence of age-related diseases
- Supports immune system function
- Studied for cancer prevention properties in animal models
- 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
- Injection site irritation (mild)
- Temporary sleep changes during cycle (usually improves)
- Rare: fatigue
- Contact sensitization (rare)
- Well-tolerated at standard concentrations
- Stacks With
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