Alginic acid is widely used in the food industry as a thickening, gelling, and stabilizing agent. It is commonly added to products like ice cream, yogurt, and sauces to improve texture and prevent separation. In the pharmaceutical industry, it is utilized as a binder in tablet formulations, as a coating for controlled drug release, and as a component in wound dressings due to its ability to form gels that promote healing and provide hemostatic effects. Additionally, alginic acid is employed in dentistry for making dental impressions and in biotechnology as a medium for cell encapsulation and tissue engineering. Its water-absorbing properties also make it useful in cosmetics, where it acts as a moisturizing agent in creams and lotions, enhancing skin hydration and elasticity.