ouch :_(
as directed, i used the whitestrips twice a day.<br /><br />i started on a saturday. at first it was tingly,<br /><br />and didnt hurt much, i didnt even classify it as pain.<br /><br />anyway on the third day, tuesday night, i noticed<br /><br />i couldnt brush my upper gums anymore coz they hurt.<br /><br />looking closer...they kinda darkened, or somehow<br /><br />my gums sort of were swollen and a bit red, i cant describe it,<br /><br />its not obvious from 3 feet away but looking really close<br /><br />you will notice it.<br /><br />it depends on your pain threshold. i never really thought of 'no pain no glory' until i tried this expensive thingy.
Rating: 3 stars