Oral-B Cross Action Charcoal White features bristles infused with Real Charcoal Extract providing a deep clean feel while whitening your teeth by removing surface stains. Its Criss Cross bristles rEaches deep between teeth removing up to 90% of plaque in hard to rEach areas.** Criss Cross Bristles: Bristles are angled in opposing directions to lift and sweep away plaque bacteria. Charcoal Bristle: Bristles infused with real charcoal extract. Power Tip Bristles: Extra long bristles help clean hard to rEach places. Tongue cleaner: Removes odor causing germs on the tongue. Whitens by removing surface stains. **Based on a single-use brushing study..