People who have used Crest Whitening Strips?!
Question: People who have used Crest Whitening Strips.?
Well, just a bit ago I asked how much they were. Now, people who have used them, did they work for you.? Did they improve a little.? If so, by how much.? Or was it just a waste of money.?Health Question & Answer
Answers:
i heard that all of those whitening products weaken your teeth. Health Question & Answer