Soft bristles just like the dentist recommends! The toothbrush handle is 100% bamboo and can be composted once the toothbrush life has expired (dentist recommend every 3 months). Once it's done pluck off the bristles and toss them in the trash.
In the USA, over 850 million toothbrushes are discarded and end up in landfill every single year. And once in landfill, the plastic toothbrush will not break down. The microplastics will often reach rivers and end up in the sea.
It’s estimated that 3.6 billion plastic toothbrushes are used worldwide every year, with the average person using 300 in their lifetime.
So it’s little wonder that by 2050 it’s predicted that there will be a higher volume of plastic in the oceans than fish.
In October 2018, a study published by National Geographic revealed that microplastics were found in 90% of table salts. Plastic toothbrushes are a major source of microplastics.