I used those strips a couple years ago.
They tasted weird being in your mouth all day and after just a few days or so,
I did notice a difference in my teeth complexion. Just a little bit more whiter,
not by much, but still there was a difference upon using them even for just a few days
(mind you I brush at least 2 times a day, floss and use mouthwash).
But I stopped because they were kind of weird feeling and it just yeah.....
I don't know how my teeth would look if I had used them for months or even a year.
So, in short. They do work and a bit effective in the short term.
But as far as long term goes, I do not know. Maybe you can go experiment
and try it yourself. Like you said, it doesn't cost much and yeah I very much
agree with you, saves you tons from going to the Dentist for that stuff.
Peace.
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