I think a women's (men's also) smile and teeth are very important.
My teeth always have been white, but hey they can always be whiter.
I use a home whitening kit from GlamWhite and I'm very happy about it.
My teeth are white (not that super fake white which I don't like) and I don't have tooth sensitivity at all.
I did have tooth sensitivity with a teeth whitening product I used before.
It costs $150 so that's €134,72, for the basic kit.
You can get 15 treatments out 1 kit.I don't use it every day in a row. I use it a couple times until they are white enough and then I use it again after a few weeks when I want them whiter.
GlamWhite whitening kit