Chondroitin sulfate sodium salt is widely used in the healthcare and pharmaceutical industries, primarily for its role in joint health. It is a key component in dietary supplements aimed at managing osteoarthritis, as it helps reduce pain, improve joint function, and slow cartilage degradation. Additionally, it is utilized in eye drop formulations to treat dry eye syndrome by promoting corneal healing and lubrication. In cosmetic products, it serves as a moisturizing agent, enhancing skin hydration and elasticity. Its biocompatibility also makes it suitable for use in biomedical applications, such as wound healing and tissue engineering.