One thought on “How long do the whitening effects last?

  1. Arti says:

    People who expose their teeth to foods and beverages that cause staining may see the whiteness start to fade in as little as 1 month. Those who avoid foods and beverages that stain may be able to wait one year or longer before another whitening treatment or touch-up is needed. Remember that whitening is not permanent, as your teeth will slowly become discolored again.

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