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This is a legitimate concern that requires proactive management

, and biomarker pathways

The FDA had been escalating enforcement actions throughout 2025, and pharmaceutical companies including Eli Lilly and Novo Nordisk filed lawsuits targeting grey-market suppliers of their patented GLP-1 compounds

BPC-157 (Body Protection Compound-157) is a synthetic pentadecapeptide consisting of 15 amino acids (sequence: GEPPPGKPADDAGLV)

Retatrutide has one of the longest plasma half-lives on this peptide half-life chart at approximately 6 days, followed closely by Semaglutide at roughly 7 days and Tirzepatide at about 5 days