We have received an uptick in questions related to this substance. We felt it was best to share our policy here to bring attention to it. . OCB adheres to WADA guidelines Simultaneous quantification of TB 500 and its metabolites in in vitro experiments and rats by UHPLC Q Exactive orbitrap MS MS and their screening by wound healing activities in vitro ScienceDirect Deoxypyridinoline and Bone Health: What This Marker Reveals About Your Revolution Health & Wellness How long does TB 500 (Thymosin Beta 4) stay in urine? Multiscale workflow for the profiling and identification of urinary food bioactives metabolites Part I: Optimizing urine extraction ScienceDirect Investigating the translational effects of in vitro LC50 on in vivo responses: Comparative toxicity analysis of bisphenol A (BPA) in Daphnia magna Journal of Earth System Science Springer Nature Link