Are the bristles biodegradable?
Standard bristles are nylon and are not. Remove them with pliers before composting the handle; the plant-based option differs, so check the product page.
How often should a toothbrush be replaced?
Every three months, or sooner if the bristles splay. That applies to bamboo brushes as much as plastic ones.
Which bristle firmness is best?
Most dentists suggest soft or medium. Firm bristles combined with heavy brushing can wear enamel and gums.
How should a bamboo handle be looked after?
Rinse and stand it upright to dry rather than leaving it in water. Bamboo lasts well but does not like sitting wet.
