I've got about 4 boxes of Clen at home that me and my girl refuse to touch. Kept me up all night and gave me heart problems at that was only at 20mcg a day. For some reason it also made me very angry, it had to be the Clen bcuz that was the only thing I was on at the time.
That being said, it absolutely does what it says it should do. We did lose weight but the sides were ridiculous.