Review (5/5): IMPRESSIVE!
I had not seen my work out buddy for about 4 or 5 days because i had fallen ill. when i ran into her after only 5 days, i noticed her teeth were remarkably white, so i asked her where she had gotten her teeth whitened and the amount she paid for the procedure. she laughed and said the only thing she had done was use this toothpaste for 4 days. so i decided to give it a try. now i have had my teeth whitened with zoom in the past, and did not expect to get similar results as my neighbors so quickly as my teeth were pretty caffeine stained, but i decided to give it a try none the less. long story short, 3 days afterwards, i was having lunch with a friend (who has critiqued the dark stain on my teeth just days before), when out of no where he asked "Dude, what did you do to your teeth, they look super WHITE!" I smiled :-)
I have been using this product for about 1 1/2 weeks, and yesterday i compared my pics from before to today, WOOOOOOOW! I haven't even finished my first tube and I already have SIGNIFICANTLY whiter teeth. I am impressed to say the least.
the product does warn u not to drink or eat anything that can stain your teeth (coffee, tea, cola, etc.) right after brushing your teeth as staining will occur,. that may be what's happening to others who claim it is not working on them.