Colgate Toothbrush Bamboo 2 PackColgate Bamboo charcoal soft toothbrush twin pack features a 100% biodegradable bamboo handle. 100% Biodegradable Bamboo Toothbrush handle with charcoal infused Floss tip bristles. Brush with confidence while being better for the environment. New Colgate bamboo charcoal manual toothbrush has a 100% natural, sustainable and biodegradable Bamboo handle. With charcoal infused Floss-tip bristles for an effective clean and a handle that is coated in 100% beeswax to minimise water absorption. How to Use It Brush twice a day for 2 minutes. Dentists recommend replacing your toothbrush every 3 months. Since this brush is made with bamboo it is recommended that you dry it off after use. Good To Know Always read the label. Follow the directions for use.