BPC 157 vs TB 500 After Surgery Lifetime Surgical These two peptides are often discussed together but they are studied for different biological roles. BPC 157 is commonly mentioned in research related to localized tissue repair and gut lining signaling pathways. TB 500 BPC 157 TB 500 NextGenPeps Bpc 157 and TB 500 My protocol and results explained! I've talked about this with probably a dozen different guys over the last 4 months so hopefully this helps someone else. #progress # BPC 157 , Peptology