what a difference a strip makes i've been using the crest whitestrips premium (i'm on my 6th day). whatcha think? the after pic was actually on the 5th day, and it's much brighter now. my teeth are a little sensitive when i eat cold stuff, but it tingles a bit then goes away. either way looks like the strips work! whooo ha! go try it, it's not expensive at all....and you can do it all in the privacy of your own home (rather than spend a grip at the doctor's office). so there's my recommendation of the month. enjoy! 15/30