Does BPC 157 Build Muscle? Effectiveness and Benefits Peptides are often well tolerated, but they can still cause temporary reactions while the body adapts. Some commonly reported effects include: BPC 157 headaches, nausea, increased appetite TB 500 Should a patient continue taking BPC 157 (Body Protection Compound 157) and Tesamorelin (growth hormone releasing factor) stacks if they have symptoms of laryngitis and cold sores? Pentadecapeptide BPC 157 Enhances the Growth Hormone Receptor Expression in Tendon Fibroblasts