We have conducted extensive research in the field of teeth whitening and have produced a line of products that addressed every concern that both dentists and patients expressed about teeth whitening We had an extremely high level of complaints from both dentists and customers We apologise for the disappointment this has caused to our staff and customers who invested heavily in this business as well as the substantial investment we also put in to the company Our experience and thousands of our customers experiences have been that the products are of questionable efficacy