Being busy doesn't have to keep you from whitening your teeth. You can now get a dramatically whiter smile while you brush - no separate whitening process required! The innovative Sonic Blue System provides fast-acting light-powered whitening, built right into a sonic toothbrush, to improve the health AND appearance of your smile at once. The best way to clean your teeth is now also the best way to whiten, for impeccably clean and beautiful teeth every day. Simply use the included Teeth Whitening Gel with your favorite toothpaste, morning and night. Many toothpastes and sonic brushes claim to whiten by removing surface stains, but that won't make a significant difference in the color of teeth. A lot of visible staining actually exists beneath the enamel. Sonic Blue's gel doesn't stop at the surface - its whitening power gets INTO teeth to remove even older, set-in stains. The blue light emitted by the brush head works with the gel's Hyperox™ technology to speed up penetration and stain removal. You could see a difference in as little as 2 days, and your teeth will look whiter and brighter every day. The system is clinically proven as effective as a leading whitening strip! The powerful vibration of the Regular setting can be adjusted to a Gentle mode, if you prefer. It is safe to use on dental work, such as crowns, veneers, bonding and other dental restorations. The brush head is thicker and wider than many sonic toothbrush heads, to help distribute the light for better whitening and make room for the high performance bristles. White antibacterial bristles help keep the brush head clean between uses, and blue bristles fade to white over time, so you know when it’s time for a new brush head. Rubber gum massagers along the sides of the brush head help clean at the gumline, where it matters most. After a few uses, you'll never want to go back to an ordinary toothbrush!