yes this powder whitensbut [SEP] this product actually does whiten teeth if it does not you have not been to a dentist in a while i see a few people complain that it does not work but you have to considerit took quite a while for your teeth to get discolored months or even years you cannot expect anything even dentist whitening to whiten your teeth over night a dentist whitening has you come back several times depending on how white you want it will take weeks even months using this to get your teeth close to white but if you use this every day you will see a difference one more thing instructions tell you to wet the tooth brush and dab it in the powder what they do not instruct is if the powder in the container gets wet mold will begin to grow on it this happened with my first order now i put a small amount of powder on the outside top of the lid dab with a wet brush then throw the small amount left away you can gauge the amount of powder needed for one use so you do not waste too much