GSK-3 Inhibitor X is widely used in research to study the role of glycogen synthase kinase-3 (GSK-3) in various cellular processes. It is particularly valuable in neuroscience, where it helps investigate GSK-3's involvement in neurodegenerative diseases like Alzheimer's, as it modulates tau protein phosphorylation. In cancer research, this inhibitor is used to explore its potential in suppressing tumor growth by regulating Wnt/β-catenin signaling pathways. Additionally, it plays a role in diabetes studies by examining its impact on insulin signaling and glucose metabolism. Its application extends to stem cell research, where it aids in understanding GSK-3's role in cell differentiation and proliferation.