Microbeads are tiny plastic particles, usually less than 5 millimeters in size, commonly found in personal care products like exfoliating scrubs, toothpaste, and shower gels. They are used for their abrasive qualities and to enhance the texture of these products. However, their small size allows them to easily wash down the drain and enter waterways. Once in the environment, microbeads can contribute to pollution and harm aquatic life. They can absorb harmful chemicals and toxins, which may then be ingested by fish and other marine organisms. This raises concerns about the impact on the food chain and human health, leading to bans in some regions, such as the United States and the European Union.