All the hype about peptides But what are they actuallyand have they really been tested in humans for muscle building or tendon regeneration? We took a deep dive into the literature Glastonbury BPC 157 Peptide Therapy 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. BPC 157: The Wolverine Peptide Unleashing the Body's Natural Healing Power: Peptides Books Kindle edition by Spurwell, Malcolm. Health, Fitness & Dieting Kindle eBooks @ Amazon.com. BPC 157 Mark Hyman, MD