Super easy to use. It certainly works good on tobacco / coffee / tea stains but after 17 careful applications I can't see any difference. My naturally-non-white teeth are still the same! Quite disappointed.

This was not as good as I thought BUT better than anything else I had tried - I have had a tooth whitening session at a beauticians which did show good results but she said it is a bit like botox - you have to have it fairly close together to get results and then can space them out - I am hoping this is the case with this product.

Acquired a definite result but not as much as hoped for will apply again in a weeks time good value for money

there are many products on the market, all claiming to make your teeth whiter, sadly the majority just do not work,and your time and money has been wasted.i have tried many of the products on the market and was very disappointed with the results. I came across the luster pro light whitening system,and after reading others reviews decided to give it a try.i followed the instructions and did the 2 day course,really impressed,my teeth are 5 shades whiter already,great product,a little expensive but well worth the money.