Given that microplastic pollution is ubiquitous in soil, oceans, and even human bodies, it has grown to be a serious environmental concern. This issue is greatly exacerbated by microplastic powders, which are frequently used in cosmetics due to their smooth texture and exfoliating qualities. Because these microscopic plastic particles are frequently too small for wastewater treatment facilities to filter out, they build up in natural water bodies where they can be consumed by marine life and eventually make their way up the food chain. This presents serious health and environmental issues. Researchers and businesses are looking for sustainable substitutes for microplastic powders as a response to this problem.

The recycling of rice husks into cosmetic silica is one possible and encouraging solution. The byproduct of rice production known as rice husks is usually thrown away or burned, which adds to waste and pollution in the environment. However, silica can be extracted from the husks and processed into a fine powder that can be used in cosmetic applications; this creative solution not only solves the issue of microplastic pollution but also adds value to agricultural waste, supporting a circular economy. The cosmetic industry can use the silica derived from rice husks to lessen its reliance on synthetic materials and encourage the use of natural, biodegradable ingredients, thereby promoting more sustainable beauty practices and reducing the harmful effects of microplastics on the environment.