BPC 157 No Proof Required! Office for Science and Society McGill University Gel injections for the knee involve the injection of a gel like substance into the knee joint to provide lubrication and cushioning. This treatment is often used to alleviate pain and improve mobility 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 Exogenous Peptide Injection Causing Medical Thigh Compartment Syndrome ScienceDirect