Yellowed teeth can be very embarrassing. You may feel like you do not want to smile because someone may see your yellow teeth. You may notice when you do smile that others grimace slightly when they see your teeth. It can have an impact on your self-esteem and your life in general. So you decide to commit to teeth whitening solutions, but you wonder which option is best for you. While there are many options available, there is really only one option that is truly effective.