For the price, I really don't think it whitens as well as it should. The only thing I did like is that I didn't experience sensitivity with the regular formula. However; with the extra strength formula, I had sensitivity issues for about two days so stopped using that one. My mouthpiece also stopped working after about 12 uses, so that was a total bust. I really, really wanted to love this, but unfortunately, disappointed.
3 years ago
Try SNOW has a
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