0oh my oh my. You wouldn't think that a light and some bleach would hurt but 20 minutes into it i was in tears..nice reward huh?..lol..the whole reason why they said free is because my dentist and I have been talking about my smoking for long time so he has became kinda friend like and is amazed I quit because i was so adamant about not being able to.
It was worth the pain..
skimmer, I would recommend it. I would think 100 times more now b4 I smoke because it would mess up my pearly whites..