This system really gives your teeth the natural white clean and it won't hurt if you have sensitive teeth.  I love this product.  My husband has used it for the past 3 weeks and his teeth were really stained...now they are close to the beautiful white they should be.  This system is well worth the money but buy it from Amazon as it is so much cheaper and you only need the paste, toothbrush, and paste set is all you need.