Today, USP <85> continues to serve as the gold standard for Bacterial Endotoxin Testing (BET), relying exclusively on Limulus Amebocyte Lysate (LAL) derived from the blood of the Atlantic Horseshoe Crab (Limulus Polyphemus). While detection methods varied, the reagent initiating the cascade reaction was always LAL. This dependence on a single-source, regionally limited raw material raised concerns about sustainability and supply chain reliability. Read More >



