To ensure the highest standards of quality and transparency, our TB500 (Thymosin Beta-4) has been independently tested by Janoshik, one of the most respected names in peptide analysis. The Certificate of Analysis (COA) for batch 19305/A confirms an exceptional purity of 99.285%, with a total content of 9.13mg in a 5mg-labelled vial—demonstrating both accuracy and superior quality. This certificate applies to both 19340/A (5MG), 19340/B (10MG), which are part of the same production batch. We’ve made the COA available directly on this page to give you complete peace of mind regarding the integrity and reliability of our product.
Click on the report below to see the verified certificate on the Janoshik website.