Used as a pigment in cosmetics and pharmaceuticals due to its low toxicity and pearlescent appearance. Commonly found in formulations for face powders, eye shadows, and other topical products where a mild, reflective effect is desired. Also utilized in some antacid preparations, leveraging bismuth's gastrointestinal protective properties. Its stability and inertness make it suitable for use in sensitive skin products. Additionally, it serves as a bismuth source in specialty catalysts and ceramic materials.