Microbeads return with squeaky-clean image

MICROBEADS could make a comeback in exfoliating shower gels and face creams as scientists have invented an environmentally friendly alternative.

The plastic beads, less than 0.5mm in size, are due to be banned this year as they are too small to be removed by sewage filtration systems, meaning they end up in rivers and oceans where they are ingested by birds and marine life.

Now engineers from the University of Bath’s Centre for Sustainable Chemical Technologies have developed a biodegradable alternative bead made using a solution of cellulose. The beads are robust enough to remain stable in a body wash, but can be broken down by organisms in sewage works, or in the environment over a short period.

Researchers believe that they could use cellulose from a range of waste sources, such as from the paper-making industry, as a renewable source of raw material.