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Luster has a rating of 1.0 star from 1 review, indicating that most customers are generally dissatisfied with their purchases. Luster ranks 39th among Teeth Whitening sites.
I'm a dentist and I had a patient ask me about this product that is sold on this website, so I researched the ingredients, user reviews, etc., and in my opinion the product is phony.
The light is way too weak to do anything, and I believe it is included only for psychological reasons.
The whitening appears to come from the zinc oxide pigment that is included in the product. I don't see anything else in it that would produce any significant whitening. This creates a nice initial impression, but in time it would wear off.
The only over-the-counter tooth whitener I know of that works is Crest Whitestrips.
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