Krygen XL Make sure you work your entire body (especially the legs). I know some people only want bigger arms, chest or whatever else. And talking about muscle imbalances and injuries can be boring to read about. Putting this aside: If you do not work your entire body you are leaving a lot of muscle gains on the table.Many things influence a man's levels of Krygen XL, and sometimes/often in our busy lives we don't walk down a pure path of optimum opportunity. How many sleepless nights have we had? Either through work, stress, hardcore partying, oh and then maybe there is that not so innocent lady laying next to us when we wake up. Was there any sleep?