Description
Thymosin Alpha-1 Capsules | Immune Research Peptide — Research Grade
Thymosin Alpha-1 (Tα1) is a 28-amino acid peptide derived from the thymic hormone prothymosin alpha, commercially approved as Zadaxin in over 35 countries for hepatitis B, hepatitis C, and immune deficiency. These oral capsules (10mg per capsule, 30 capsules) provide a research format for studying innate immune activation, T-cell maturation, and toll-like receptor signaling.
Mechanism of Action
- TLR2/9 activation — acts as an endogenous agonist of toll-like receptors 2 and 9, initiating innate immune responses
- T-cell maturation — promotes differentiation of T-precursor cells in thymic models; enhances Th1 polarisation
- NK cell activation — upregulates natural killer cell cytotoxic activity and IFN-γ production
- Dendritic cell modulation — enhances antigen-presenting capacity and IL-12 production
Research Areas
Thymosin Alpha-1 is studied in viral hepatitis, HIV-associated immune dysfunction, cancer immunology, and sepsis models. Often used alongside KPV capsules for comprehensive immune-modulatory research. Zadaxin approval data provides robust clinical reference context.
For Research Use Only. Rainbow Peptide supplies this compound exclusively for in vitro and laboratory research purposes. Not for human or veterinary use.






Dr. A. Okonjo –
Thymosin Alpha-1 capsules for our oral immune modulation research. Content purity >99%. Capsule uniformity excellent. COA detailed. T-cell activation model showed expected activity from oral delivery.
R. Nakamura –
10mg TA-1 capsules — convenient oral format for our immunomodulation research. Content confirmed. COA thorough. Consistent quality matching the vial format. Fast shipping.
T. Oberg –
Good Thymosin Alpha-1 capsules. Content >98.5%. Capsule uniformity within spec. COA comprehensive. Useful oral format for our thymic peptide immunology research.