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While nicotine is necessary for tobacco dependence, conditioned behavior is also an important factor and has strong implications for behavioral treatment

It has a large 3D curved screen on the side that matches the natural shape of your palm

After a few weeks of use, one of our testers claimed, "this is the brightest my teeth has ever been." Advertisement - Continue Reading Below Pros One of the most dentist-recommended strip versions Super easy to apply and won't slip off Accessible for pick-up at your local drugstore Cons Can leave some gel behind, but can be resolved with a simple rinse Crest Whitestrips were one of the first at-home teeth-whitening products that were accessible to the masses

Remarks: The above values of the properties obtained in our laboratory test