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Anonymous
I usually take care of my teeth, dont smoke or drink coffee, but my teeth are not considered white just the normal bright beige. Unfortunately this product did not help in making them whiter even though I kept it for at least 30 minutes each time It seems it was made mostly for people with stained teeth, or to maintain white teeth after you do whitening.
3 years ago
Read Zhengyu Ma Reviews
Zhengyu Ma has a 4.4 average rating from 326 reviews

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