this review title is: if you got money go for it if not you can probably find something better for the price and the content is: i do notice a difference and i have only used it twice however you have to do minutes times to complete treatment it literally takes more than a half an hour to complete also it says it is safe to swallow the solution but it taste so gross and makes me nauseous when i swallow it and i did get tooth pain on the first treatment during the round however it was quick and did not linger like the others would overall i think it is ok but i do not think it is worth it for the price point therefore if you got money then go for it if not you can probably find something better.there are other information for this review, one is this reviewer did purchase it and the other is 1 people think this review is helpful.