It depends upon the user. If you are a beginner or a first time user you can start with a dose of 250-300mg per week and continue for not more than 12 weeks. Advanced bodybuilders go as high as 600-750 mg per week. This cycle again should not last for more than 12 weeks. Furthermore, Sustanon 250 can be used for both bulking and cutting cycles since testosterone has anabolic as well as androgenic properties.