I bought this product for my wife and she ended up with a rash after a few days of use. She only used it for 3 to 5 hours a day. I did see there are other reviews stating this as well but there were some that said they saw results so we took a chance on it. Also, understand that if you want to return it, the shipping cost will be on you, so in the end I would of ended up losing more money. The shipping to return it would of been double the cost of the actual purchase. The good news is the seller is responsive, and did allow the return, hence the two star rating. But in the end it's cheaper for me to keep it and the wife said she will give it to her girlfriends to try if they are so interested.