I bought a pack of these while I was in Canada - 40 strips to be used twice a day for a total of an hour. I used these strips for three days and they gave me really bad tooth sensitivity. The last time I tried them the pain was so bad that it woke me up in the middle of the night - I have not been ble to use them since. Because of the short time I used them I cannot say if they work or not.
Crest Premium Plus - teeth whitening strips
Views 4 Likes Comments Comment
14 September 2006
Have something to share, create your own guide... Write a guide
Explore more guides