The Lactate Dehydrogenase (LDH) Activity Assay Kit is widely used in biomedical research and clinical diagnostics to measure LDH enzyme activity, which serves as a key indicator of cell viability, cytotoxicity, and tissue damage. In research, it is employed to assess the effects of drugs, toxins, or experimental conditions on cell health, particularly in studies involving cancer, neurodegenerative diseases, and metabolic disorders. Clinically, it aids in diagnosing conditions such as heart attacks, liver disease, and hemolytic anemia, where elevated LDH levels are often observed. Additionally, the kit is utilized in quality control processes in biomanufacturing to monitor cell culture health and ensure product consistency. Its simplicity, sensitivity, and reliability make it a valuable tool in both laboratory and diagnostic settings.