The new Zoom! Take-Home Whitening System has a dual barrel chemistry is engineered to accelerate the whitening efficiency by helping increase gel penetration and a new activation matrix that helps regulate the release of oxygen. The package includes everything necessary to safely and effectively bleach your teeth. The difference between the Chairside and Take-Home is simply that you use the Take-Home Gel in the convenience of your own home over a few days or nights. The Chairside System is performed entirely in the office.