Crest Whitestrips Supreme Professional Strength
Crest Whitestrips Supreme Professional Strength Strips are 90% more effective than other whitening strips. The strongest whitening formula available by Crest, these whitening strips give professional results in minimal time. A little more of a rigorous routine than other Crest Whitestrips, you wear them twice a day for 30 minutes at a time. These strips contain 14% hydrogen peroxide, a professional dose, which attacks stains below the surface. A great product for when you really want to go the extra mile for the whitest teeth you can get at a very affordable cost.