bio børsten makes sustainable toothbrushes made from bamboo. Every year more than 3.500.000.000 (yep - that’s billions) plastic toothbrushes are consumed, resulting in approximately 70.000 tonnes of plastic waste. bio børsten is an entirely biodegradable toothbrush that aims to reduce plastic waste and give conscious consumers a sustainable and health-friendly alternative to plastic toothbrushes. bio børsten’s values are sustainability, user-centered design and health-first.