All true gh is not a mass builder, but what you get you get to keep! All lean muscle growth, plus more cells for aas to bind with and grow, always better results when utilized with aas and continued after cycle to maintain and help keep gains from cycle. But remember hgh makes all cells grow so bloods are very important before ever starting hgh injections to make sure no possible cancer is hiding just waiting for a stim like hgh to kick start. But if your clean and have enough money for what it takes to really utilize hgh I find it to be a great added compound.