Clenbuterall or "Clen" is a legal,non-prescription mega-fat burner. Clebuterall is a thermogenic / anti-lipogenic compound used for rapid fat loss in men and women. Clenbuterall is the common fat burner used among competing bodybuilders, professional athletes and Hollywood actors and actresses. Designed with the intent of being among the elite in pre workout supplements, Clen is also a powerful fat-burner with some similarities to Ephedrine yet far more powerfully effective. While designed to act as a potent fat burner, muscle toner and anti-lipogenic, it is the exceptional fat-burning abilities that have intrigued so many and by and large without question it is the number one reason many buy Clenbuterall (Clen) in the first place. The reason is simple; Clenbuterall (Clen) greatly increases your total metabolic activity by stimulating the Beta-2 receptors; once this process is in play the results are very simple, we now use stored body-fat for energy to a higher degree. While direct fat-burning is the primary mode of action regarding its metabolic activity properties Clen has been shown to also greatly reduce total appetite; decreasing appetite can be useful to those struggling to lose weight.