Okay I tried out these white stripes for 5 days and I can see a slight difference. What do you think? I will say that I have naturally pretty white teeth but it never hurts to polish them especially around the holidays. I didn’t notice any sensitivity but they are green stripes and the green gel does stick to your teeth a lot when you take them off so be prepared to have to slightly brush it off when the 30 mins are up. If you have sensitive gums then this would be a great option for a teeth whitener and you just get them on Amazon. $30 for 14 treatments and they are enamel safe and peroxide free. teethwhitening whitestripes painfreeteethwhitening whiteteeth whiterteeth @inopro.us