Can you inject peptides into the knee? BPC 157 has already hit the mainstream, but should it hit your bloodstream? Affordable BPC 157 + TB 500 Injections Wolverine Peptide Therapy in South Florida Prescription, Cost, Dosage, Benefits, Side Effects 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.