Q. Hi there, My teeth have been yellow for as long as I can remember. (I first became aware when I was 11 or 12, I am now 44.) On and off over the years I have tried various home kits/toothpastes with no success, I have also been to a dentist and had the Britesmile treatment done approximately 3 years ago which also proved very disappointing. I have seriously considered having veneers (Lumineers) but one dentist suggested that I should try the Enlighten whitening system first as my teeth are fairly straight, its only the colour that lets them down. From this do you have any suggestions or opinions on the various whitening systems that may help me?