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I wanted to try this after seeing so many good reviews on YouTube. These pens claim to be made with natural ingredients, contains no harmful peroxide, and will not cause teeth sensitivity. One pen is suppose to last 14 applications. I have some stains from drinking too many caffeinated drinks in the past and wanted to see if this really works. Unfortunately I didn`t take before and after photos, but I have noticed slight results after 2 overnight uses, and it doesn`t cause teeth sensitivity.
All photos are my own.