Bests & Worsts Reviews from Amazon

I have had visible whitening in less than 7 days. Very important - READ THE DIRECTIONS!!! Take a BEFORE photo for comparison. You use a pea sized dab, 2x daily on a DRY toothbrush. DO NOT RINSE your mouth after brushing. Not really all that difficult. I suspect that the people who have said it doesn't work are A - not using per the directions OR B - looking for instantaneous results. Although I have had visible whitening in just a few days, I am really excited to see how my teeth look after 30 days. I was not able to see a difference in looking in the mirror daily - I thought it wasn't working either. A second photo and I put them side by side and THEN I could see that it was indeed working. I also have sensitive teeth & have experienced NO issues using this product. It also tastes great and my teeth are very clean after brushing. I drink coffee/tea daily AND I am a smoker - and my teeth still got whiteness! So I'm skeptical about the naysayers reviews. Ive actually used it, AS DIRECTED, and gotten very good results. My photos are REAL and have not been filtered or edited in any way.