Thymosin Alpha-1 (5mg)

Why Buy Thymosin Alpha-1 from Official Peptides

Official Peptides offers Thymosin Alpha-1 at verified 99%+ purity with independent third-party HPLC documentation on every batch. We ship from the US with cold pack packaging and same-day dispatch. Researchers studying thymic peptides, immune modulation, and antiviral pathways choose Official Peptides for our transparent quality process and competitive pricing.

Thymosin Alpha-1 Research Profile

Thymosin Alpha-1 (Tα1) is a 28-amino-acid peptide originally isolated from thymosin Fraction 5, a bovine thymic extract, by Allan Goldstein’s laboratory in the 1970s. It is now produced synthetically and is approved in over 35 countries as Zadaxin for hepatitis B, hepatitis C, and as an immune adjuvant in cancer patients. Research has extensively examined its role in innate and adaptive immune modulation, antiviral defense, dendritic cell maturation, and T-lymphocyte activation. For research use only where not prescribed as Zadaxin.

Product Specifications

• Purity: ≥99% (HPLC verified)
• Format: Lyophilized powder
• Quantity: 5mg per vial
• Storage: Refrigerate at 2-8°C; protect from light
• Shipping: USPS Priority Mail with cold pack; ships within 1 business day

Frequently Asked Questions

Q: What immune mechanisms does Thymosin Alpha-1 research focus on?
A: Published research on Tα1 covers dendritic cell maturation and cytokine production, T-helper cell differentiation (Th1 vs Th2 balance), natural killer cell activity, toll-like receptor signaling, and plasmacytoid dendritic cell interferon production. In antiviral contexts, Tα1 has been studied for promoting interferon-alpha secretion and antigen-specific T-cell responses.

Q: Where is Thymosin Alpha-1 currently approved for clinical use?
A: Thymosin Alpha-1 (brand name Zadaxin, made by SciClone Pharmaceuticals) is approved in over 35 countries for chronic hepatitis B, chronic hepatitis C (in combination with interferon), and as an immune adjuvant in non-small cell lung cancer and other malignancies. It is not FDA-approved in the US, where it remains a research compound.

Q: Is Thymosin Alpha-1 the same as Thymosin Beta-4 (TB-500)?
A: No. Thymosin Alpha-1 and Thymosin Beta-4 are distinct peptides from different thymic protein fractions with different amino acid sequences, mechanisms, and research profiles. Thymosin Alpha-1 focuses on immune modulation; Thymosin Beta-4 (TB-500) focuses on actin regulation and tissue repair.

Order Thymosin Alpha-1 Online

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For Research Use Only. This compound is intended strictly for in vitro laboratory research by qualified scientists. Not for human consumption. Not FDA approved. Keep out of reach of children.