Zyflex Each phase is designed to last for a few months a person can adjust that minutes and focus. I used phase 1 for simply a month after that moved to the rest with the workout. Content articles have a lot of of muscle to gain then could possibly stay in phase 1 as long as you won't gain a great deal of fat along the way. I have a feeling that in case two months of phase 1 shortly be more than satisfied utilizing the amount of muscle you get.