To ensure safe steroid cycles, you must wait until natural testosterone levels return before beginning new cycles. A steroid cycle should not exceed 4 weeks. You should keep your steroid cycles short because of HCG hormone side effects arising due to long cycles. If you take steroids for 8 weeks, the recovery time for the same is 4 weeks. A safe duration for steroid cycle would be 8 weeks. Building muscles is not that difficult. One can gain muscles in no time with Human Chorionic Gonadotropin sense of persistence and commitment. It can be done with a proper diet and proper workout routine.