Crest Compliment - True to its Name
HEWITT, TEXAS -- I tried a sample of Crest's newest white strip; Advance Seal. I was impressed with the actual seal of the top and bottom strip. The strips do not move around or foam up like other teeth whiteners. I had a family member look at my teeth before and after and, my teeth were visibly whiter after one use!
There is only 2 minor problems; the strips are hard to take off and, somewhat difficult to put on crooked teeth.