Review (5/5): This product works with no tooth pain!
Last time I had my teeth whitened not only was it expensive, time consuming AND I could not have coffer for three days (OMG), it hurt - a lot! So I bought Glo really, really hoping for some whitening and little no pain. It worked to whiten very well and NO tooth PAIN!! Plus it was easy t o fit into my routine, so I give this product 5 stars.