Transhydrogenase-2 (TH-2) Activity Assay Kit is primarily used in research to measure the activity of the enzyme TH-2, which plays a crucial role in cellular energy metabolism. This kit is essential for studying the enzyme's function in maintaining the balance of NADPH and NADH, which are vital for various biochemical processes, including antioxidant defense and biosynthesis. Researchers utilize this kit to investigate metabolic disorders, aging, and diseases related to oxidative stress. It is also valuable in drug discovery, helping to screen compounds that modulate TH-2 activity, potentially leading to therapeutic advancements. The assay is straightforward, providing accurate and reproducible results, making it a reliable tool for both academic and industrial laboratories.