Bests & Worsts Reviews from Amazon

Right up front: this system changed my teeth from a disgusting rank of "12" on their whiteness chart, to a rank of "7" after 10 of the 2-minute treatments. My gums did not turn white as other reviewers experienced, nor did my lips bleed, nor did my teeth hurt. I'll tell you how. First and foremost, my teeth are terrible, between yellow & brown. If you have teeth that are just sorta off-white, well, you're not giving the system much to work with. Use this system if you think your teeth are gross. Second, if you read all 122 reviews, you'll find tips. I bothered to read them all and to use all the tips, which I'll list. Here we go. 1. Brush teeth as usual, rinse. 2. Brush teeth with just water (no paste). Rinse, repeat. <-- this step helps to prevent tooth pain. 3. Use the Luster mouthwash that is provided. 4. Roll up a 2 inch wide strip of paper towel. Put it between your bottom lip and teeth, so that your lip no longer touches your teeth or gums. 5. Repeat step 4, but for the top teeth. 6. With your lips now pushed out away from your teeth and gums, apply chapstick or vaseline liberally to your lips. <-- protects lips. 7. Use the Luster whitening brush to paint your front teeth, carefully avoiding touching any skin/lip/gum area. 8. Don't forget to re-dip that brush after *every* tooth you paint. 9. Hold the light to your mouth, press the button, and wait 2 minutes. Position it between your lips so that they aren't getting the brunt of the light. When you are done, you'll probably have a lot of saliva to spit out. That's fine, but do NOT rinse with water. Get another 10 ml of the mouthwash, and repeat from step 3 onwards. Do this over & over until you've done the process 10 times. THEN you can rinse with water. My teeth don't hurt, my lips are fine, my gums are fine. I *did* feel my lip getting very hot during the 6th time through the process, but that just indicated to me that I had accidentally dripped a bit of the whitening solution onto my skin. After that 6th time was done, I grabbed a paper towel and scrubbed the heck out of my lip, then re-applied the chapstick with a thick coat. Everything turned out to be just fine. I'm pretty happy with the results. I'll do another 10 in a day or two and hopefully go from a white level of "7" to a "4" or so.