I wanted to try out a whitening kit just to see how well it worked. I started out cheap just to see how it went. I am very happy that I chose the Plus White whitening kit. It's cheap yet very effective. I used it for about a week at night before bed and 3 days into using this product I started to see a difference, but I was like well maybe I'm seeing what I want to see or something, but then my co-workers started asking me if I had my teeth whitened or something because they could tell a difference in my teeth. This let me know that it wasn't my eyes playing tricks on me. I do a touch up whitening with this product maybe once or twice a month because I drink coffee, but the results are wonderful. I will continue to use this product.