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 is one of the peptides that has been getting a lot of attention recently. It is a synthetic peptide derived from a protein found in human gastric juice. In experimental research, BPC 157 Banned: Key Facts on the Latest FDA Decision BPC 157: Miracle Healing Peptide or Hidden Danger? Peptides, explained: Answers to your top questions