Human growth hormone, or HGH, is a natural hormone made by the pituitary gland that helps regulate growth, metabolism, and tissue repair. The synthetic form is called somatropin, and it is used only in specific https://izaakadpw706421.liberty-blog.com/40960813/hgh-and-somatropin-what-they-are-how-they-work-and-why-they-require-medical-supervision