Okay, okay clenbuterol isn’t an actual steroid. It’s regarded more of as a stimulant instead, like ephedra. However many people do make this mistake because bodybuilders tend to stack clen with other anabolic steroids in a cycle.
This is due to clenbuterol’s fierce ability to burn fat by increasing a persons metabolic rate. Clen doesn’t have any major anabolic effects in men because it doesn’t affect testosterone levels to any significant degree. So don’t expect to build any muscle on clen, however if you’re stacking it with compounds like winstrol or testosterone you are likely to put on a little mass (on low calories).