Cell Meter™ Cell Proliferation Assay Kit is a sensitive fluorescence-based method for quantifying cells and assessing cell proliferation and cytotoxicity in a microplate format. The kit uses our Nuclear Green LCS1, a proprietary fluorescent dye that exhibits strong fluorescence upon binding to nucleic acids. The use of Nuclear Green LCS1 improves accuracy over cell metabolism-based cell proliferation or cytotoxicity assays that can be influenced by cell changes that are unrelated to cell numbers. The kit does not require cell lysis, long incubations or removal of cells with minimal hands-on time. It is compatible with high throughput screening.