A Patient’s Guide to Peptide Safety, Side Effects, Compounded Products, and Monitoring By Dr. Stephen Petteruti, DO Patients frequently ask two primary questions before beginning peptide therapy: “Are peptides safe?” and “Are peptides steroids?” The answers depend on the specific treatment involved. Peptides are distinct from steroids. Certain peptide medications have undergone extensive study and possess established safety records. Others lack sufficient human research or remain investigational. Compounded and injectable peptides may also present concerns

By Stephen Petteruti, DO Board-Certified Physician Medical Review Date: July 29, 2026 BPC-157 and TB-500 have generated considerable interest within the clinical community as potential novel interventions for tissue repair, surgical recovery, tendon injuries, and wound healing. Although these peptides are frequently discussed together, they are not interchangeable due to differences in molecular structure, proposed mechanisms of action, research backgrounds, and potential clinical applications. BPC-157 is supported by a substantial body of preclinical research involving