LiveONLY™ Nuclear Red is a nuclear dye designed to stain the nucleus exclusively in live cells. This unique feature allows for clear distinction between live cells and dead or membrane-compromised cells. Its cell-permeable design enables selective accumulation in the nucleus, producing red fluorescence without requiring fixation or permeabilization. The simple mix-and-read protocol requires minimal hands-on time, making it ideal for seamless integration into standard imaging workflows. Compatible with a wide range of cell lines and imaging systems, LiveONLY™ Nuclear Red is ideal for live-cell applications such as real-time cell tracking, viability assessment, and high-content screening.