BPC 157 + TB 500 Blend 20mg Research Peptide PRG BPC 157 is a peptide made up of short chain amino acids that may help support recovery, repair, and reduce inflammation. Whether you're an athlete recovering from an injury or dealing with 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 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