Bests & Worsts Reviews from Amazon

So I originally bought this after I had a 5 year old told me how yellow my teeth were.... I'm a heavy smoker but I brushed my teeth every day with that Crest whitening toothpaste. I knew my teeth weren't a perfect white but I knew they weren't some ugly shade of yellow. So as an impulse buy I bought some charcoal toothpaste... I took my before photos, eagerly waiting for that perfect white smile. I didn't see results after a few days, or a week as some reviews have claimed. It was almost 3 months before I noticed that nice dental commercial white. So I finally took my after photo today.