A mitochondrion is a multifunctional organelle involved in energy production in cells as well as other additional cellular functions. The active cycle of mitochondrial fusion and division induces morphological change, also known as mitochondrial dynamics. Abnormalities in morphological control of mitochondria are associated with neurodegenerative diseases, metabolic disorders, aging, etc. Therefore, the demand for long-term observation of mitochondrial dynamics has been increasing recently. Dojindo’s MitoBright LT dyes are designed to exhibit mitochondria retention for long-term visualization. MitoBright LT dyes also show stronger fluorescence signals compared to other commercially available dyes that contain chloroethyl moiety. The MitoBright LT dyes offer three different color options (Green, Red, and Deep Red). Dojindo offers various reagents for mitochondria research. (https://www.dojindo.com/mitochondria-research/)