Much cheaper than getting your teeth professionally whitened in a DR office. You can buy then over the counter at your local pharmacy without a prescription. They tend to work pretty fast. They are safer than other forms of whitening. The results are usually pretty professional looking. They are quick and very easy to use. You do not need to leave them on for long periods of time or over night as with some teeth whitening kits. There are just a few of the major benefits of choosing teeth whitening strips over other whitening methods.