first timers (from what i read about) go around 3-4 IU's ed. most do 5 days on 2 days off. But I have also read about some studies about 1 day on 1 day off is better and will produce better gains. You can;'t stack it with IGF-1 and/ or a cycle of AS which will produce even better gains than GH alone. GH is run for at least 3-6 months for optimal GH gains/ results