Non-medical users of anabolic steroids often “stack” different anabolic steroids over the course of a “cycle” of use. They also administer various ancillary drugs and substances to enhance the desired effects of anabolic steroids or to minimize adverse side effects. The most common liquid (injectable) anabolic steroids encountered in these cases are (oil-based) esters of testosterone (., testosterone cypionate, testosterone enanthate, and testosterone propionate, and a blend of testosterone esters called Sustanon 250) or nandrolone (., nandrolone decanoate). Also popular are Equipoise (boldenone undecylenate) and trenbolone acetate and trenbolone enanthate, as well as the water-based injectable Winstrol (stanozolol). Popular oral anabolic steroids include methandrostenolone (Dianbol), oxandrolone (Anavar) and oxymetholone (Anadrol 50).
Sustanon 250 is a potent combination of four esters; testosterone propionate, testosterone phenylpropionate, testosterone decanoate and testosterone isocaproate. All four esters have different half lives; propionate has a half life of one day, phenyl propionate has a half life of 1 to 2 days, the half life of isocaproate is 4 to 5 days and that of decanoate is 7 to 8 days. The esters having short half life release quickly in the body but wear off quickly too thereby needing frequent doses. The esters with a long half cycle stay in the body for long but take time to become active. The different half cycles make Sustanon 250 quite useful and the users require just one dose per week. This is one of the reasons users buy Sustanon 250.