The protocol at a glance
There is no human dose. Published work describes how the natural hormone works and what it does in animals.
| Item | What is known |
|---|---|
| Human dose | Not established |
| Studied in | Lab and animal studies; reviews of the natural hormone |
| Human trials | None found for thymulin as a treatment |
A ClinicalTrials.gov search for thymulin returned only a zinc-supplement trial in infants (NCT01229579), not a thymulin trial. Reviews: Bach 1989, Goya 2004, Dardenne 2006.
Community reports commonly describe 500 mcg to start, then 1 to 2 mg a day in 20-day cycles. These are user reports, not trial doses.
What people say they do, collected from community discussions. Not tested in a trial; shown so you can compare it with the evidence above.
Mixing
No mixing table here: this one is used as a capsule, nasal spray or skin product, or has no human amount to calculate from. The general mixing calculator works for any vial.
What the trials found
No human treatment results exist.
Searches of ClinicalTrials.gov and PubMed on 5 Nov 2026. Reviews describe the natural hormone and animal work only.
Side effects
- There is no human safety data for thymulin as a treatment.
How it works
Zinc-dependent thymus hormone
Thymulin is made by the thymus and is active only when bound to zinc. Reviews link it to immune and nerve-system signalling in animals.
Sources
- Bach JF. Med Oncol Tumor Pharmacother 1989 (Thymulin, a zinc-dependent hormone), PMID 2657247
- Goya RG et al. Peptides 2004 (Thymulin and the neuroendocrine system), PMID 15003367
- Dardenne M et al. Ann N Y Acad Sci 2006 (thymulin or its analogue as an analgesic), PMID 17192563
- ClinicalTrials.gov search for thymulin: only NCT01229579 (zinc in infants)
- Drugs@FDA / openFDA search: no thymulin product