Amazon.com: The Peptide Therapy Protocols Bible: Ultimate Guide to BPC 157, TB 500 & Essential Peptides Evidence Based Handbook for Weight Loss, Muscle Growth, Anti Aging & Performance Optimization: 9798346671183: Harrison, Alexander Z.: Books Theres a lot of debate about whether BPC 157 needs to be injected or if the oral version works. The truth is, oral BPC 157 can be just as effective as injectablebut with one key adjustment. A small Most peptides are broken down in the stomach and not absorbed when taken orally, which is why injectable forms are often used. BPC 157 is a unique exception. Because it originates from the gut, its Pentadecapeptide BPC 157 Reduces Bleeding and Thrombocytopenia after Amputation in Rats Treated with Heparin, Warfarin, L NAME and L Arginine PLOS One