This is a great product. The teeth trays conform to your teeth ...
I purchased this product directly from the seller from another site. This  is a great product. The teeth trays conform to your teeth so that the solution is able to contact the teeth very well. I noticed visible results after a few treatments. Very convenient to use. I just put them on for about 20 mins before going to bed. Way better than teeth whitening strips which I will no longer purchase after using a product such as this.
Rating: 5 stars