BPC 157 is the OG peptide that started the craze, and for good reason. BUT because one of the primary mechanisms of BPC 157 is to up regulate blood vessel formation, its led to Allele specific HLA LOH in solid tumors: distinct patterns by tumor type and potential prognostic relevance Journal for ImmunoTherapy of Cancer Most people using BPC 157 and TB 500 are missing the one peptide that makes both of them work better. Cartalax works at the genetic level to restore how your stem cells actually function, Can BPC 157 Heal a SLAP Tear? Vertex PT Specialists