Somatotropin, the chemical name for growth hormone, is a polypeptide hormone synthesized and secreted by the pituitary gland. The r in rhGH is for recombinant DNA technology, which simply means , as opposed to before 1985, when hGH was retrieved from the anterior pituitary of cadavers. hGH, is the abbreviation for human growth hormone, indicating the correct sequence the hormone naturally produced in the body.

Growth hormone is also considered to be our master hormone due to the fact that it is first released at birth and continues to play a major role in our body's anabolic efforts. hGH remains present in our body and is a key player during our adolescence years and is responsible for the strengthening and mineralization of our bones. Other significant hGH functions also include hyperplasia (creation of new cells), lipolysis (fat burning) and protein synthesis.

Growth hormone has been reported to increase athletic performance as well as muscle growth. hGH does not work in the same way as an anabolic steroids. Steroids work by increasing muscular size through hypertrophy, or increased size in muscle tissue, while hGH works primarily through hyperplasia, which is the creation of new cells.

While hGH works by increasing IGF levels which cause hyperplasia, in and of itself, muscular size increases are not usually associated with hGH use alone, androgens are usually required to increase the new cell tissue. Look at it this way, once you have reached your peak by building your God-given muscles to their largest size where no further increases in size are possible, even with steroids, hGH will take you to unreachable heights by adding new muscle cells through hyperplasia, thereby allowing you to use steroids to increase the new cells to maximum size, bypassing your previous set point.

Unlike anabolic steroids which must be cycled on and off to avoid permanently suppressing the body's hypothalamic-pituitary-gonadal-axis (HPGA), hGH does not suppress the HPGA and can be used for long periods of time. Most users do not even begin to see results until at least two months into their hGH cycle, at that point, results will continue for as long as the hGH is used.

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