Stanozolol is a popular anabolic steroid that is used by bodybuilders and athletes to help increase their strength and performance. It is also known as Winstrol or Winny. Stanozolol is a synthetic steroid that is similar to the naturally occurring hormone testosterone. It has anabolic and androgenic properties, which means that it can help build muscle and improve athletic performance. Stanozolol is available in both oral and injectable forms. It is most commonly used as an oral supplement, but some people prefer to inject it.