BPC 157 in the urinary and reproductive system. Peptide therapy in kid Synthagen PL What is BPC 157 and How Can It Benefit You? Le Jolie Med Spa 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 The peptide problem: Hype is outrunning the evidence How BPC 157's Mechanism of Action Aids Healing LivvNatural