Do the whitestrips give you a "cheesy" white smile or do they really give you one that doesn't look like you whitened your teeth artificially?
In my experience, the whitening was very natural. Same smile, just whiter teeth. To be honest, my teeth weren't really bad before doing it, but I definitely saw an improvement after using them. However, unlike the advertisements, no one was blinded when I opened my mouth and my smile wouldn't replace a flashlight when the power goes out in my neighborhood (as it did yesterday for an hour)
Take the ads with a grain of salt, I'm sure they exaggerate to sell the product. Bradford