KLOW (GHK CU, TB 500, BPC 157, KPV) 80mg :: Aurapeptides Powerful peptides for skin and hair regeneration BPC 157 + TB 500 Combination: Benefits, Differences, and When to Use Both Revolution Health & Wellness 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