

Thymosin Alpha-1
Immunomodulatory Thymic Peptide
Thymosin Alpha-1 (Talpha1) is a 28-amino acid peptide originally isolated from thymic tissue and marketed as Zadaxin in 35+ countries for hepatitis-related research. Not FDA-approved in the United States. Subject of extensive preclinical and clinical literature on T-cell maturation and innate immune signaling. For laboratory research use only.
Agonizes Toll-like receptors (TLR2, TLR9) on dendritic cells and modulates T-helper cell differentiation, regulating both adaptive and innate immune pathway activity.
For Research Use Only. Sold for in vitro laboratory research. Not for human or veterinary consumption. By purchasing, you confirm you are 21+ and a qualified research professional.
Acetylated 28-amino acid peptide isolated from thymic tissue.
Every batch of Thymosin Alpha-1 ships with an independently conducted Certificate of Analysis by Janoshik Analytical or Bioviridian. The COA includes HPLC-MS chromatogram, mass spec confirmation, endotoxin levels, and heavy metals screening.
Batch number is printed on the vial label and included in your order confirmation email. Look it up at pepidyn.com/coa.







