Frontiers BPC 157 as a Therapy for Retinal Ischemia Induced by Retrobulbar Application of L NAME in Rats Last night I called a patient before his spine surgery tomorrow and he tells me he's been taking a stack of peptides to 'heal his back.' So let's talk about it. Peptides We've found that BPC 157 doesn't change structural issues in 99% of cases. So, if you have a large disc herniation pinching a nerve root, BPC 157 is usually ineffective., However, if your pain is from BPC 157 No Proof Required! Office for Science and Society McGill University