Microbeads refer to plastic particles so tiny that they are not larger than five mm in diameter. Since they are made of plastic, they are solid and do not dissolve in water. If they are so tiny, what’s their use? You'll be surprised at how extensively they are used-in everything from face wash and shower gels to bodyscrub as exfoliants (agents that remove dead cells from the surface of the skin). They are used in toothpastes too. Useful they are but microbeads are just as harmful. Due to their tiny size, they escape wastewater treatment systems and enter waterbodies, including rivers and oceans. There they are consumed by marine creatures, and eventually, by humans through seafood.
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