Sustanon 250 is a solution in oil. Each ampoule contains 1 ml arachis oil containing the following active substances: - 30 mg Testosterone propionate - 60 mg Testosterone phenylpropionate - 60 mg Testosterone isocaproate - 100 mg Testosterone decanoate All four components are esters of the natural hormone testosterone. The total amount of testosterone per ml is 176 mg.