I've been using the White Glo toothpaste for about 3 weeks now and I've almost finished the tube, I'm not that impressed though! It doesn't seem to have made any difference really, so I'm a little disappointed! I get a better result with Arm & Hammer Advanced Whitening, its around £2 cheaper and often on offer in Tescos and Wilkinsons.
Well, that's saved me a couple of quid anyway!!