Thymalin
Khavinson bioregulator derived from thymus extract — studied for immune restoration and longevity in 35+ years of Russian research.
🔬 Mechanism of Action
Thymalin is a thymic bioregulator peptide developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology. It consists of a standardized extract from the thymus gland containing small regulatory peptides.
Thymalin restores thymic function in aging immune systems by promoting T-cell differentiation, maturation, and activation. In a landmark longitudinal study, Khavinson demonstrated that combined Thymalin + Epitalon administration in elderly patients reduced mortality by 50% over a 12-year period. It represents the immune-modulating arm of the Khavinson bioregulator protocol.
Source: PMID: 15677927
📜Background & History
Thymalin is a polypeptide extract from the thymus gland used extensively in Russian and former Soviet clinical medicine since its development by Vladimir Khavinson in the 1970s–80s as part of the landmark Bioregulator/Peptide Bioregulator program. Unlike synthetic peptide bioregulators, Thymalin is a natural extract containing multiple short peptides. Published 15-year follow-up data (St. Petersburg Institute, 2003) demonstrated reduced overall mortality and cancer incidence in elderly subjects receiving annual Thymalin courses — one of the most compelling longevity datasets for any peptide therapy.
🎯 Research Use Cases
- ✓Age-related immune decline (immunosenescence) reversal
- ✓Post-cancer treatment immune restoration
- ✓Longevity protocols: reducing age-associated morbidity and mortality
- ✓Chronic infection susceptibility in the elderly
💉 Dosing Protocol
| Typical Dose | 10 mg/day for 10 days |
| Frequency | 1× daily (10-day course) |
| Half-Life | ~30 minutes |
| Common Vial Sizes | 10 mg |
🧪 Reconstitution Example
⚠️Safety & Considerations
Used clinically in Russia and CIS countries for 35+ years. Excellent safety profile in clinical studies. Administer intramuscularly or subcutaneously. No significant adverse events reported.
⚡Interactions & Contraindications
Excellent long-term safety profile across 30+ years of Russian clinical use. May interact with immunosuppressive drugs — use under medical supervision in transplant patients. Annual 10-day cycles is the standard Khavinson protocol.
🔗Synergies & Common Stacks
The foundational Khavinson longevity stack: Thymalin (thymic immune restoration) + Epitalon (pineal/telomere restoration). Clinical data supports this combination for mortality reduction in elderly cohorts.
Both are thymic immune modulators — Thymalin is a broader extract, Tα1 is a specific isolated peptide. May be complementary in severe immunosuppression.
❓ Frequently Asked Questions
How does Thymalin relate to Epitalon?▼
What is the Thymalin protocol?▼
📖 References
- Khavinson VK, et al. “Thymic peptides in the treatment of cancer.” Int J Immunopharmacol (2000). PMID: 11137612
- Khavinson VK, Morozov VG. “Peptide bioregulators: a new class of geroprotectors.” Bull Exp Biol Med (2000). PMID: 10977940