Your high-tech water filter could become a thing of the past.
A recent study shows that Moringa oleifera, an ancient herbal plant known as the “tree of life,” can remove microplastics from water.
Researchers at the Institute of Science and Technology of São Paulo State University found that moringa seeds, native to India and other tropical regions, can remove toxins from water and perform as well as chemical treatments.
“The saline extract from the seeds performs similarly to aluminum sulfate, which is used in treatment plants to coagulate water containing microplastics,” said the author of the study, Gabrielle Batista. “In more alkaline waters, it performed even better than the chemical product.” In testing, the extract achieved removal efficiency above 98%—comparable to widely used chemical treatments.
Morgina has long been praised for its wide range of medicinal benefits and has been used to treat wounds, reduce inflammation, treat liver and heart disease, and even cancer, according to research. The plant’s high mineral content also makes it a desired ingredient for skincare and moisturizers.
As cultural norms shift toward a more chemical-free lifestyle, driven by greater education and awareness of the harms of toxins in our environment, data show that more people are opting for organic over synthetic. This is particularly appealing when it comes to water.
“There’s increasing regulatory scrutiny and health concerns regarding the use of aluminum- and iron-based coagulants, as they aren’t biodegradable, leave residual toxicity, and pose a risk of disease,” said lead study researcher Adriano Gonçalves dos Reis. “For that reason, the search for sustainable alternatives has intensified.”
Plastic pollution is now globally recognized as a critical threat to both the environment and human health. According to 2026 data from the Ocean Blue Project, approximately 8-11 million tons of plastic enter the ocean annually. As a result, microplastics have become ubiquitous and pervasive in everyday life, routinely detected in water, food, and everyday products — revealing themselves in 90% of seabirds and in human blood and lungs. It is estimated that humans may ingest tens of thousands of microplastics per year.
Researchers have raised questions about the impact of humans ingesting microplastics, whose toxins have been linked to digestive issues and reduced fertility. As of April 2026, the EPA named microplastics as a “priority contaminant group” in its draft Sixth Contaminant Candidate List, along with other major contaminants like pharmaceuticals that may be present in our water.
Recent advances have highlighted plant-derived natural coagulants, such as those from moringa, as promising eco-friendly alternatives to synthetic treatments. Among them, moringa has been extensively studied, and recent data show that its microplastic removal rate exceeds 90% in the right conditions.
The study’s findings also show potential cost and energy savings from using moringa for organic filtration, reducing the need for chemical expenses and infrastructure overhead.
But researchers caution that gaps remain, especially in scaling.
While results are promising, large-scale trials are needed to determine if moringa-based filtration can be effective in the real world and in complex municipal water systems.
