on the fence [SEP] i m still on the fence about this product it doesn t come with any directions but because i m basically an expert user in red light therapy devices i know how to use this someone who is not though may not be sure the component itself just feels kind of cheap it s not a real stone it doesn t heat up very well and although it charges super quickly i just don t think this device is strong enough to be helpful to the under eyes i don t think it s hurting anything but i don t think it s helping in any way either unfortunatelyit is very cute though