this review title is: can not buy replacement cartridges and the content is: i cannot tell you if it works but so far i am not seeing results but have only used it for a couple weeks i tried to see how much replacement cartridges are and i cannot find any i even contacted the manufacturer in china and was told they do not have any.there are other information for this review, one is this reviewer did not purchase it and the other is 0 people think this review is helpful.