Peptide side effects no one talks about BPC 157 headaches. TB 500 fatigue. CJC Ipamorelin water retention. Most people quit. But 90% of the time it's the protocol, not the peptide. Gray Market Peptides: So Much Hype, So Little Data Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype BPC 157, TB 500, and GHK Cu: Separating Fact from Fear in Cancer Concerns Gabriel Alizaidy, MD, MS posted on the topic LinkedIn