Since individual results do vary from person to person, we are also Kor Whitening System providers for those seeking the lightest possible shade for their teeth or for those who have simply not had success with other forms of teeth whitening products. Kor is so effective that it even works in many cases of tetracycline staining. Kor is generally considered the most effective deep bleaching system available on the market, and only select practitioners offer this product. We are proud to offer Kor Whitening System to our patients who are seeking the top material available on the market for whitening. Some of the amazing transformations achieved by this product can be viewed on the Kor Whitening’s website.