BPC 157 + TB 500 Blend Peptides for Research 99% Purity Peptide Therapy in Newport Beach, CA 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 Just ordered the bpc157 and tb500 mix for this lingering shoulder injury I've had for about 6 months. What's the best way to inject it and how often?