Gel Clot Endotoxin Assay Kit is designed as a simple and sensitive in vitro end–product endotoxin test for human and animal parenteral drugs, biological products, and medical devices. The kit utilizes the Limulus Amebocyte Lysate (LAL) test, which is a qualitative test method for Gram-negative bacteria endotoxin. The sensitivity of LAL in this kit is 0.25 EU/ml.