I just saw some Mentos Whitening Gum at the checkout and bought it on impulse. It says teeth will be noticeably whiter in six weeks.

It's made with xylitol, which has been shown to reduce cavities, as well as calcium (remineralizes enamel), and baking soda (an abrasive that reduces stains). I don't think it'll hurt by any means, but I wonder if it'll actually make my teeth whiter. Like how many times per day would I need to chew to see results? Just curious if anyone here has tried it.