BPC 157 and other peptides are everywhere in the fitness world right now. The anecdotal reports (and some early research) are exciting! But, we still need to approach BPC 157 with caution. Right now, Protecting and Repairing the Body with BPC 157 BioDesign Wellness Center 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