Leah would wholeheartedly recommend this easy system over any other product she's ever tried. She saw a noticeable difference after the four days were up and felt no discomfort throughout. Without a tray or strip to contain it, the product did occasionally get on her lips and tongue during application, but it was easy to wipe away with a finger.
Leah was especially pleased with the way the product dissolved naturally. "I'd put it on in the morning after brushing my teeth, walk out the door, and 20 minutes later when I arrived at work, it was gone!"
Source: Elizabeth Griffin/Hearst