Cytotoxicity is often measured through various bioassays that assess cell viability, proliferation, and death. Common assays include the MTT assay, which measures metabolic activity; the LDH assay, which detects lactate dehydrogenase release from damaged cells; and the Trypan Blue exclusion assay, which identifies dead cells by their inability to exclude the dye. These assays provide critical information on the potency and potential risk of a cytotoxic agent.