Thymosin Alpha-1
Approved (multiple countries)Thymosin Alpha-1
- Category
- Immune & Inflammatory
- Aliases
- Tα1, Zadaxin, Thymalfasin
- Administration
- Subcutaneous injection
Documented benefits
Tier 1 · Peer-reviewed / regulatoryBenefit categories
Immune & Inflammatory
Thymosin Alpha-1's defining research application — approved in 35+ countries specifically for immune support.
Antiviral support
Enhances the immune system's antiviral response, historically used alongside hepatitis B and C therapies.
Cancer immune support
Enhances T-cell and natural killer cell activity, supporting the immune system's own response to tumors.
Enhanced T-cell function
Its core, defining mechanism — directly stimulating T-lymphocyte maturation and differentiation.
Immune modulation
Can both strengthen an underactive immune response and help regulate an overactive one, depending on context.
Immune system strengthening
Broadly enhances immune cell activity, historically used to support patients with weakened immune function.
Natural killer cell activity
Enhances the killing power of natural killer cells specifically, a distinct immune cell type from T-cells.