crest white strips
 

anyone tried these things

my girlfriends teeth are white as white gets from
them

but she puts them on when she goes to bed and leaves
them on all night rather
than the 30 mins reccommended

careful, if you don't follow the directions, it will eat all of the enamel off her teeth and she'll need to get caps!!!!

I tried them and they did absolutely nothing for me, other than to make my mouth sting, but everyone else seems to like them. There's no way in hell I'd leave them on all night! What good is it to have white teeth if they all erode and fall out? ;)

They def whitened my teeth but I couldnt keep them on very long they kept slipping off.

Tell her to use them the appropriate way. I don't know if theres a negative side effect from wearing them all night but you can let her know there is no benefit because I wore them the way I should and theres no way her's are whiter than mine :ak47:

I just bought the crest premium white strips... suppose to work by 7 days... but i cant keep them on, they keep slippin.