Used as a thickening agent in cosmetics and pharmaceuticals, providing viscosity and stability to gels, creams, and lotions. Helps suspend ingredients evenly and enhances texture for smooth application. Commonly found in topical products like acne treatments, moisturizers, and hand sanitizers. Also functions as an emulsifier to blend oil and water-based components. In drug delivery, controls the release rate of active ingredients and improves adherence to skin or mucosal surfaces.