A professional, whiter smile in minutes— GLO Science, the break-through and award-winning teeth whitening system, has you covered with their revolutionary technology and invigorating gels. Unlike other whitening systems, GLO features whitening gel G-Vials. This innovative formula sticks to the surface of your teeth without getting on gums or tissue, ultimately protecting your teeth and avoiding problems with sensitivity. Everyone can have a radiant smile with this award-winning technology!