Smile Direct are now pleased to be able to offer this new White & Go® Whitening Pen. Now you can whiten your teeth wherever and whenever you like with the portable and compact White & Go® Whitening Pen. Used daily for a period of two weeks you can whiten your teeth by up to 5 shades. This pen is also great for touching up and maintaining your teeth after the LED treatment that Smile Direct offer. Simply slip the pen into your hand bag or pop it in the glove compartment to enable you to whiten you teeth whenever and wherever you like!