In the past I have tried all of the "whitening " toothpastes and the crest 3D strips but this is my first whitening system. I loved it it made my teeth white and didn't cause me a lot of pain. After reading about people getting it on their gums I decided to try it a different way, one that I read someone else doing on another review. I painted the gel on my teeth with a small paintbrush instead as to avoid any contact with my gums. Even though I didn't do all my teeth, just the one that showed when I smiled or spoke, this worked perfectly and I love it!
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