In plain English
Thymalin is a mix of short peptides taken from the thymus, the gland that trains your immune cells. It was developed in the Soviet Union to restore immune function, and it is used in Russia as a medicine. Thymogen and the synthetic Vilon are related products.
What it's used for
- Immune support, especially after illness, surgery or treatment
- Healthy aging
- Recovery from infections
Benefits
In human studies from Russia, thymalin courses improved immune markers and, in long-term studies of older adults, were linked to lower death rates over the following years. Users report better resilience to colds and a general sense of recovery.
How it works
In simple terms: Thymalin is thought to remind an aging thymus how to train immune cells.
Its short peptides appear to influence gene activity in immune cells, helping T cells mature and balancing the immune response. The thymus shrinks with age, which is one reason immunity weakens over time.
Development history
- 1970s: Developed by Vladimir Khavinson and Vyacheslav Morozov at the Military Medical Academy in Leningrad.
- 1980s: Approved for use in the Soviet Union.
- Today: Used in Russia and by longevity enthusiasts elsewhere.
Typical protocols
These ranges come from Russian clinical use and what users report.
| Use | Dose | Frequency | Length |
|---|---|---|---|
| Immune course | 5–10 mg | Daily | 5–10 days |
Cycling
Short courses repeated once or twice a year, a pattern typical of bioregulators.
Administration options
Intramuscular injection is traditional; subcutaneous is also used.
Reconstitution and dosing calculator
Traditionally supplied as 10 mg vials, mixed with 1–2 mL of water or saline.
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This tool does arithmetic only. It does not choose a dose or confirm that any substance is right for you. Double-check every result against your syringe and your clinician’s instructions.
Side effects and safety
- Users report it is generally well tolerated; injection-site soreness is the most common complaint.
- Rare allergic reactions.
- Avoid during pregnancy and breastfeeding.
Common stacks
- Epitalon: the classic Khavinson longevity pairing.
- Thymosin Alpha-1: another immune peptide.
Storage
Powder: refrigerate or freeze. After mixing: refrigerate at 2–8 °C and use within about 2 weeks.
Compare with
- Thymosin Alpha-1: a single, well-defined thymus peptide with Western clinical data.
- Epitalon: the pineal bioregulator.
Frequently asked questions
What is a bioregulator?
A very short peptide (or peptide mix) from a specific organ, developed in Russia, thought to support that organ’s normal function.
References
- Khavinson VKh, Morozov VG. Peptides of pineal gland and thymus prolong human life. Neuro Endocrinol Lett. 2003;24(3-4):233-240.