Dr George's Teeth Whitening System Review

Got this for Christmas 09. Must say the trays are fiddly. I made a mess of my first try and had to order more trays. So I'm currently 2 weeks in to the process for my bottom teeth. It seems to be working. No sensitivity as yet. Not huge differences in colour but definitely something happening. I might try and leave them in for longer than 30 mins to see if this helps. Might also try putting gel straight on to teeth. All in all it seems pretty safe, but takes time rather than instant results.