It won t work at 2 weeks. There s a long lag between stimulation of muscle growth and the muscle actually growing. Muscle is complicated and can t grow that fast. So, you re talking at least 2 months to do very little and a year to get a real effect. You are probably aware of the side effects of steroid use for high amounts for a year. You can t really escape this since those are from the identical actions that make bigger muscles.