Testosterone is known as an androgen. It is produced by the testicles and is the main hormone essential for normal growth and development of the male sex organs and male sexual characteristics.
The natural production of testosterone is controlled by another set of hormones called gonadotrophins, which are released from the pituitary gland in the brain.
During adult life, testosterone is essential for the production of sperm, the maintenance of sex drive, erectile potency, and the functioning of the prostate gland and other reproductive structures. It also has functions in the skin, muscles, skeleton, kidney, liver, bone marrow and central nervous system.
Low levels of testosterone can cause decreased sex drive, impotence, infertility due to decreased sperm production, decreased mental and physical activity, fatigue and weakening of bones.
Testosterone is given as replacement therapy when natural testosterone levels fall too low, causing symptoms such as those above. Natural testosterone levels fall with age and following surgical removal of the testicles (castration). They may also fall due to decreased functioning of the testicles (hypogonadism or eunuchoidism) caused by testicular disease, or by decreased gonadotrophin production by the pituitary gland, as a result of pituitary disease.
Testosterone replacement allows natural testosterone levels to return to normal, thus relieving the symptoms of the deficiency.
Sustanon injection is called a depot injection. It is injected slowly into the muscle where it forms a reservoir of medicine. The testosterone is gradually released all the time from the reservoir into the bloodstream. The injection is usually given once every two to three weeks, though the frequency will depend on your individual testosterone levels. Sustanon-250 is the brand name for the four part testosterone mixture originally created by Organon but as is common, as it was the first form of the compound the trade name Sustanon-250 is largely associated with all brands. Sust, as it is commonly known is comprised of only testosterone but it has four various esters attached; two short, one moderate and one long ester. The composition of the compound is as follows:
Testosterone Propionate: 30mg
Testosterone Phenylpropionate: 60mg
Testosterone Isocaproate: 60mg
Testosterone Decanoate: 100mg
To understand Sustanon-250 we only need to understand testosterone and the manner in-which esters work. Once we understand the hormone testosterone and once we understand the esters attached are not hormones then we can understand how this particular steroidal compound is supposed to work.
As you can see from its makeup a large portion of the testosterone becomes active very quickly once administered due to the Propionate and Phenylpropionate forms being attached. However, the full release will not occur until the Decanoate fulfills its function; because of the Decanoate ester being attached Sustanon-250 has a total half-life of approximately 18 days.
The greatest benefit of use is by far the ability to provide testosterone over an extended period of time but for the performance enhancer this proves to be of little use. When used for performance purposes the idea is not to simply provide testosterone but to do so and keep it at its peak level as well as stable. Due to this fact and since Sustanon-250 provides a dose that dwindles as time goes by for performance purposes it must be injected at minimum every three days with every other day being optimal.
Once you understand the manner in-which best suits your needs in-terms of injection frequency you can then enjoy the benefits of this powerful testosterone hormone. Like all testosterone's, regardless of the form, Sustanon-250 will greatly increase nitrogen retention in the muscles as well as protein synthesis; key factors in both growth and preservation. Further, through testosterone use we can readily increase our red blood cell count and the powerful anabolic IGF 1 hormone, all key factors in the performance game.
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