Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype BPC 157 TB 500 Blend Tissue Repair Research Peptides BPC 157 can be taken orally or subcutaneously, and for most people there is no difference in efficacy.Yes, some people will notice one works better than the other. Yes, some people will claim that 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.