Sometimes you have to scale down to really clean up. Sometimes, you need a toothbrush armed with bristle tips measuring less than 0.01mm wide. That’s where Colgate SlimSoft Charcoal comes in. Its superfine <0.01mm slim tip, stylish black bristles are infused with charcoal to help with the removal of plaque bacteria for a deep and gentle clean. They clean deep between your teeth and along your gum line, reaching spots that regular bristles cannot, and effectively removing bacteria.