ECO Friendly Bamboo Toothbrushes | Zero Waste Biodegradable Toothbrushes –Smartlifeco.com – Tagged "bamboo_toothbrushes" – SmartLifEco | Eco Friendly Toothbrush | Changing your plastic toothbrush every 3-4 months isn’t very environmentally friendly. That’s why we designed the best compostable toothbrush for clean teeth and a clean environment. A sustainable toothbrush is a small step towards a better future.