Is expired Day White teeth whitening solution safe? What are the negative effects?

SR72 asked:


I found an unopened Day White Teeth Whitening solution syringe, which my dentist gave me 2 years ago. I used it with my teeth mold for whitening. However, when I used the solution, the clear solution was almost a liquid – usually, it’s a gel, and I had to squeeze some of the solution out before I was able to combine the white & clear gels. Will further use of this solution cause damage to my teeth? Will it be effective?

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2 Responses to “Is expired Day White teeth whitening solution safe? What are the negative effects?”

  1. Rey W Says:

    LR008, My dentist was able to help me understand the teeth whitening procedure very clearly to me. They should be able to answer your questions. If you can’t find a dentist that can help, try finding one here:

  2. Jane S Says:

    Hmmm….I don’t think it will cause any damage to your teeth, but it may not work as well as it did when you first received it.

    I would say get some new teeth whitening solution.

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