Does Crest Whitening Strips work?? Will it make my teeth really white and sparkle IF my teeth is very yellow??

yellow teeth from drinking too much tea and coke and other colour drinks
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THey have like 50 differnt teeth whitening products on the market now. Things like Crest White Strips. Howvever, although they work they are bad for ur teeth so u shouldnt use them so often. I used it once and will nvr again, bc why ruin ur teeth just to look a little better. I mean have we become so into our looks that we dont even care if it affects our health. But if u want to do it, do it. You can also have it done professionally by ur dentist but it costs alot more, although supposedlly they do a better job. You know ever since i started brushing my teethafter every single meal my teeth have become so much whiter its amazing. Try that, but u have to keep it up, if u really care i would go thatw way, as opposed to unhealthy, its healthy, and it works almost as good. Ive been doing that for 4 months now, and everyone tells me they see a big difference.
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