You must decide what you need it for. Growth hormone is used for diseases with a lack of HGH, for bodybuilding and for rejuvenating the body. In bodybuilding, growth hormone helps to make the body more strong, that is, gain muscle mass faster and lose fat. For rejuvenation, it is used in lower dosages than for bodybuilding, and this is aimed at strengthening bones, increasing the amount of energy, improving immunity and quality of sleep, and so on. In any case, you should not use this drug yourself, be sure to consult a doctor about this, he will explain to you the need to use growth hormone, in what way and how much it should be taken.