Thymalin
Thymus Gland Peptide Bioregulator — Immune Modulator
What is Thymalin?
Thymalin is a polypeptide extract from bovine thymus glands, developed by Russian researcher Vladimir Khavinson as a thymic bioregulator. It is the original peptide bioregulator from which Thymosin Alpha-1 and other thymic peptides were derived. Thymalin has been studied for immune system normalization, longevity, and age-related immune decline (immunosenescence).
Thymalin contains multiple thymic peptides that collectively stimulate T-cell maturation, normalize T-helper/T-suppressor ratios, enhance NK cell activity, and restore immune function in aged or immunocompromised individuals. As a polypeptide extract rather than a single peptide, it has a broader mechanism than single thymic peptides like Thymosin Alpha-1. Russian longitudinal studies spanning 30+ years report significant longevity benefits.
Research Evidence
Russian clinical studies demonstrate Thymalin normalizes immunosenescence markers including T-cell ratios, NK activity, and cytokine profiles in elderly subjects.
30-year Russian longitudinal studies report reduced mortality and preserved immune function in elderly subjects treated with Thymalin vs controls. The evidence base is substantial within the Russian research framework.
Limited independent Western trials. The extensive Russian data is published but not always peer-reviewed in standard Western journals.
Evidence grades: Gold = RCT human data · Silver = consistent animal/human data · Bronze = limited or preliminary
Dosing Protocols
Reconstitution Guide
| Vial Size | BAC Water | Concentration | Target draw |
|---|---|---|---|
| 10 mg | 2 ml | 5 mg/ml | 5mg = 10 units |
| 20 mg | 4 ml | 5 mg/ml | 5mg = 10 units |
Frequently Asked Questions
Is Thymalin the same as Thymosin Alpha-1?
No. Thymalin is a polypeptide extract containing multiple thymic peptides. Thymosin Alpha-1 (Ta1) is a single, defined 28-amino acid peptide that has been isolated, characterized, and approved as Zadaxin in 35+ countries. Thymalin has a broader but less precisely characterized mechanism. Ta1 has stronger Western clinical trial evidence; Thymalin has a longer Russian research track record.
What is the Khavinson peptide system?
Vladimir Khavinson developed a system of short peptide bioregulators derived from specific tissue glands — each proposed to have tissue-specific gene regulatory activity. Thymalin (thymus), Epithalon (pineal), Pinealon (pineal), Cortagen (cortex), and others form this system. All follow the same short intensive cycle dosing protocol and have Russian clinical evidence with limited independent Western replication.
References
- [1]Khavinson VKh, Morozov VG. Peptides of pineal gland and thymus prolong human life. Neuro Endocrinol Lett. 2003;24(3-4):233-240.
- [2]Morozov VG, Khavinson VKh. Natural and synthetic thymic peptides as therapeutics for immune dysfunction. Int J Immunopharmacol. 1997;19(9-10):501-505.
This profile was prepared using AI-assisted research synthesis. Citations are provided where applicable — verify with primary sources before clinical application.
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