Technplogy we are delighted to introduce the led advanced whitening system this is a revolutionary tooth whitening system and provides a quick painless and non invasive teeth whitening solution the results are so prominent the company also offers a 100 money back guarantee if they do not whiten your teeth a minimum of four shades whiter professional laser teeth whitening has been proven to have no long term negative effects on the enamel of the teeth or the gums in fact the procedure