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Shipping Update: Order before 3pm Tues 31st March for same-day dispatch, orders after this time will be shipped on the 4th April. We’re closed 1st–3rd April (office move & bank holiday) and Mon 6th April. Orders ship from Sat 4th April.

Purity Test Report
TB500 (Thymosin Beta-4) 19340/A (5MG), 19340/B (10MG)

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.