Research Use Only Comparative Overview of BPC 157 and TB 500 BPC 157 and TB 500 are synthetic peptides under active investigation in experimental and preclinical models. Though often explored in similar research contexts, Peptide Therapy 101: Can BPC 157 & Thymosin Beta 4 Accelerate Ortho Recovery? Are you down with BPC 157? Dr. Neil Paulvin Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype