I would imagine you have come to that idea after having exhausted all your other options. Like a strict teeth brushing regime for a few weeks, no coffee, no red wine, no smoking. Otherwise, it would seem strange to want to spend a small fortune on it when you can actually save money doing the above and achieve a nice white smile. Obviously if you have tried it and it didn't give the results you were hoping for then you should contact your nearest cosmetic dentistry surgery and speak to them, you can find them in the yellow pages.