This product is an affordable and easy home-whitening option. The flex-fit feature of these strips allowed for greater coverage than the traditional strips and it also created a comfortable and snug fit. These strips didn’t shift around during the process and stayed firmly in place. Afterwards I saw immediate improvement, even as quickly as in just one application.

Best strips I've used yet. Like the larger size, stretchiness, effectiveness. Friends who have yellowed teeth due to antibiotic use have noticed whitening and are extremely happy.