Subcutaneous Injection Sites and Instructions for Safe Self Administration There's a common misconception about peptide injections that targeting them directly at pain sites is more effective than abdominal injection. However, when you inject peptides like BPC 157 Can you inject peptides into the knee? Intra Articular Injection Of Peptides For Joint Pain BPC 157 And TB 500 for Arthritis BPC 157 & TB 500 Wolverine Stack in Southlake, TX