Most bodybuilders who use anabolic steroids manufactured by underground labs (UGLs) in the United States are primarily concerned with whether or not the product is accurately dosed with the anabolic steroid listed on the label. Some more health conscious steroid users are also concerned about potential health risks arising from the contamination of UGL steroid products with bateria and/or heavy metals. Fortunately, bacterial contamination is not a common problem since most UGLs effectively sterilize the product by adding ingredients such as benzyl alcohol, etc. However, few people have actually considered the potential toxicity of using anabolic steroids contaminated with heavy metals. Given that most of the steroid powder is illicitly imported from China, the possibility of contamination with lead, tin, mercury, arsenic, etc. is a real possibility.
