Thymulin
Facteur Thymique Serique · FTS
Half-life
4 hr
Time to Peak
1 hr
Steady State
~1 days
Dose Range
50–200 mcg
Frequency
Daily
Overview
A naturally occurring nonapeptide hormone produced by the thymus gland. Requires zinc for biological activity (zinc-thymulin complex). Serum levels decline with age as the thymus involutes. Used in the longevity community for immune optimization and anti-aging. Very limited human PK data from exogenous administration. Requires reconstitution with BAC water.
Mechanism of Action
Promotes T-cell differentiation and maturation. Modulates cytokine production and immune homeostasis. Requires zinc as a cofactor for receptor binding and biological activity.
Dosing Information
| Route | Dose Range | Half-life | Tmax | Frequency |
|---|---|---|---|---|
| Subcutaneous (SubQ) | 50–200 mcg | 4 hr | 1 hr | Daily, three times weekly |
Storage & Handling
2-8C — Store lyophilized powder refrigerated. Reconstitute with BAC water. Ensure adequate zinc status for biological activity.
Used in Regimens
Thymulin is not currently part of any catalog regimen.
Data Sources
- Peer-reviewed Thymulin (FTS) thymic hormone characterization
Related Tools
Track Thymulin with Doseline
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