What exactly is Stanozolol?

The main ingredient, or rather the laboratory name of Winstrol is called stanozolol. This synthetic anabolic steroid is commonly sold all over North America under the names of Winstrol and Winstrol Depot. It is also commonly referred to as Winny or Stromba. While all these names point to the same substance, the name Winstrol is used for the pill form of the steroid while Winstrol Depot is used for the injection form. Primarily used by athletes and bodybuilders, stanozolol, like most steroids, is generally used for bulking up.