Rubbish, waste of money, does NOT work. Rubbish, waste of money, Does NOT work. Had to give it one star to post the review, it does not deserve any stars.

Save your money total waste of time only gave 1 star cause it makes you

It doesn't work but I gave a 2 star because of how easy it is and professional, i have quite discoloured teeth and it didn't do a thing and i made sure i kept up with the routine.

Fantastic results and I am only on 13 treatments out of 20.. really made a difference to the tea , coffee and smoking stains on my teeth.. I will be smiling a lot more now! Only bit of advice is to buy 4 additional batteries as the light does fade...

The 'how to use' omits to mention that you have to repeat the 3 easy steps 10 times, one after another! So each treatment takes at least 30 minutes!