D-glucosamine sulfate sodium salt is widely used in the pharmaceutical and nutraceutical industries, primarily for its role in supporting joint health. It is a key ingredient in dietary supplements aimed at alleviating symptoms of osteoarthritis, as it helps in the repair and maintenance of cartilage. Additionally, it is utilized in veterinary medicine to promote joint health in animals. In research, it serves as a precursor for studying biochemical pathways related to glycosaminoglycan synthesis. Its applications also extend to cosmetic formulations, where it is valued for its skin-conditioning properties.