Review (1/5): Both original item and replacement were defective
I can't honestly speak to the effectiveness or functionality of this product, since both the original AND the replacement cleansing brushes I received were defective. Same problem that many others have posted. Opened and charged exactly as instructed, and the brush would not turn on. Placed back in the charger, and it acted as though it had never been charged, and no amount of charging ever allowed it to turn on.
At least the returns process through Amazon is painless.