Read of a brighting receipe that included Nutri Brite. By the time I recieved all the items for the "free" trial I had paid $9.00 in shipping and the Nutri Brite company started sending orders costing $90 a month. I called and cancelled all orders but Nutri Brite said I was past the 21 days of their terms, so they were keeping every penny of my money. When I called back with my credit card company they then tried to saw I was yelling at the woman; which was not true. This products does not work and I am not convinced that Nutri Brite is not behind getting people to post them on a blog to gain sales.