7 Day Kit Crest Professional Effects Advanced + 1 Hour Express Whitestrips

7 Day Kit = 4 Professional Effects + 3 Express Whitening Strips

Crest 3D 1 Hour Express and Professional Effects is designed to whiten like a professional-level teeth whitening treatment at home. The Advanced Seal Technology’s comfortable, no-slip grip means the strips stay put until you take them off, allowing you to talk and even drink water while whitening your teeth.