BPC 157: What It Is, What We Know, and Why Its Use for Arthritis Remains Unproven San Diego Orthobiologics Medical Group BPC 157 has already hit the mainstream, but should it hit your bloodstream? TB 500 vs BPC 157: Comprehensive comparison of healing peptides Peptides like BPC 157 are everywhere on social media right now. They are most commonly promoted for injury and tendon healing and are often paired with other peptides such as TB 500.