BPC 157 Benefits, Dosage & Before After Results Comment PEPTIDES to find out what an actual peptide expert doctor breaks down about peptides., Peptides are suddenly everywhere., GLP 1s., BPC 157. Collagen peptides., Growth hormone peptides., BPC 157 Mark Hyman, MD 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.