If it were that simple, a lot of people would be going around buffed and all. But of course we don't see them because HGH injections are just too expensive, and in addition, they are also illegal and dangerous. They are effective indeed but you will be taking a lot of risk if you inject yourself with human growth hormone.
HGH injections start at $800 and can go as high as $2,500 a month.
A typical prescription