When it comes to achieving a brighter smile from the comfort of our home, we've found that the Crest 3D Whitestrips Professional Effects truly deliver. With 22 treatments included in the box-20 strips plus 2 bonus sets-we were eager to see how they would perform on our teeth. Each treatment comes with a pair of upper and lower strips, making application a breeze. What impressed us the most was the balance between convenience and effectiveness; within just a few sessions, we noticed a visible difference in the whiteness of our smiles. The strips adhered well, allowing us to go about our day without any discomfort or hassle. For anyone seeking an affordable yet professional-level whitening solution, we believe Crest 3D Whitestrips might just be the answer we've been looking for. With remarkable outcomes and an easy routine, our smiles have never felt brighter!