Go Smile Whitening Gel for the Blue Light Whitening Toothbrush 3.5 ounces<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> For use with the Blue Light Whitening Toothbrush (Item No. 203561) </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> A powerful whitening treatment that works while you brush </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Add to your favorite toothpaste every day to whiten as you brush </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> The built-in blue light amplifies the gel’s whitening action </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Fkaew-OhL.jpg" noproxy>