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 Exercise Based Rehabilitation & Strength Training Poseidon Performance Dartmouth The Wolverine Stack Guide BPC 157 & TB 500 Dosage and Benefits Peptide Shop UK 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.