I would not mix hgh with this. One compound is trying to keep you lean, the other is bulking and making you retain water. If you are going to do YK11 run it by itself. Trust me, YK11 gives RAD140 + LGD4033 and MK677 combined a run for the money. It will not bulk you up like the others, but will get you nice. It has an amazing ability to keep your body weight the same while shredding fat and building muscle. I would start with 15mg, I tried 10 on my first cycle, the second one I ran it at 15 and it is better then 10. Some guys have done more, I will run it again but next cycle will be 20 mg.