Intra Articular Injection Of Peptides For Joint Pain BPC 157 And TB 500 for Arthritis The Human Lab Rats Injecting Themselves with Peptides Office for Science and Society McGill University Frontiers Pharmacokinetics, distribution, metabolism, and excretion of body protective compound 157, a potential drug for treating various wounds, in rats and dogs Have you used peptides? What are your thoughts? Let me know below Peptides are short chains of amino acids that play vital roles in cellular signaling and repair throughout the body.