Citrate Synthase (CS) Activity Assay Kit is widely used in research and clinical settings to measure the activity of citrate synthase, a key enzyme in the tricarboxylic acid (TCA) cycle. This kit is essential for studying mitochondrial function and cellular energy metabolism, as CS activity serves as a reliable marker for mitochondrial content and health. It is commonly applied in studies related to metabolic disorders, neurodegenerative diseases, and aging, where mitochondrial dysfunction is a critical factor. Additionally, the kit is utilized in exercise physiology to assess changes in mitochondrial capacity in response to physical activity. Its applications also extend to toxicology, where it helps evaluate the impact of drugs or environmental toxins on mitochondrial integrity. The assay is straightforward, providing accurate and reproducible results, making it a valuable tool for both basic and applied research in biochemistry and cell biology.