Yes, it worked and I took a few extra steps to minimize the pain. The difference in color was not as dramatic as in the commercials, nonetheless, I am happy with the result: noticeably brighter, more evenly colored choppers in only 2 hours.
PRICE:
VERY happy with the Amazon price. I purchased the product under the Subscribe and Save option. My local grocery store is selling this same product for $24.99 plus taxes. Buying it from Amazon, I saved close to $10 with free delivery!
PAIN:
I have fairly sensitive teeth (I was in agony and drooling when I used a dentist prescribed whitening system). For two weeks prior to using Rembrandt, I used Sensodyne toothpaste. A half hour before, I took Advil (use whatever you know works for you), and continued with it thru the 24 hours following the treatment. I adhered to Rembrandt instructions to the letter: I used only as much gel as it was necessary (less then 1.5 ampules per each 20 min period); I placed the gel in the front lower groove of the mold, to pevent it from seeping behind my teeth; after insertion, I wiped extra gel from my gums with a q-tip. Also, I used Vaseline generously on my lips, to protect them from accidental contact with the gel. In between treatments I cleaned off and dried the molds, and rinsed out my mouth vigorously. Also, I did not cut off the holders from the molds. I found leaving them on made it easier and less messy to pull the trays out, thus further decreasing the time gel was in contact with my mouth. Last, but not least, I made sure I did not swallow saliva during the process, so as not hurt my throat with any excess gel. Ultimately, THE PAIN WAS MINIMAL TO NONE.
EFFECT:
My teeth are not paper white, still, they have a much improved brighter appearance. I will be using this product again. The effect did continue to deepen over the following 24 hours. Also, to help maximize the effect, I used a q-tip to distribute the gel in-between some teeth that did not meet evenly. Otherwise, the gel may not have reached those areas.
CON:
The molds are small! I could only cover six uppers! They should definitely add an extra inch to the length of each tray.
Hope this helped!