The dictionary defines the term exogenous as relating to or developing from an external factor or factors. It is just the opposite of endogenous, meaning naturally developed from within. More simply, and especially when related to hormones like testosterone, exogenous generally associates to synthetically produced product. Therefore, it is a form of synthetic or commercially intended testosterone replacement therapy. Everyone knows what testosterone is. Testosterone is a hormone typically produced in adequate amount by the male testes, one of the many glands that compose the endocrine system. It typically rises in males during adolescence or puberty, and then levels off in early adulthood. The levels of testosterone then naturally begin to decline as a man reaches his 30s or 40s.A typical range of the hormone in healthy adult male’s averages anywhere from 300 to 1000 ng per deciliter. Anything within this range is considered normal. In case of any side effects, you have to undergo supraphysiological levels of Test so as to ensure the level of testosterone is just maintained.

As a hormone, it is responsible for producing secondary sex male characteristics in men. Body and facial hair, larger muscles, leaner muscle to body fat ratio, maturation of genitalia and sperm production, libido, and more.It is also important in muscle and bone development, growth, and strength.  By natural way, this hormone is manufactured in the testicles, but this manufacturing process is organized by the pituitary and hypothalamus glands. The hypothalamus gland is located in the brain close to the pituitary gland. The hypothalamus is responsible for maintaining normal levels of fluids in the body.

Natural is always considered best, and safer, and in most situations, the body is perfectly capable of producing adequate amounts of the hormone on its own. In the case where levels are low (hypogonadism), androgen replacement therapy may be recommended. That’s where exogenous testosterone comes in. Synthetic or substitute hormones are not always as good as the “real deal”, due to their source and manufacturing processes, but can still provide a number of benefits and help to relieve many of the symptoms of low Testosterone in men. The goal is to maintain testosterone in adequate amount and for this you may look for supraphysiological levels of Test.

A few of the most common forms of injectable testosterone prescribed by physicians includes:

  • Acetate
  • Cypionate
  • Phenylpropionate
  • Propionate
  • Enanthate
  • Decanoate
  • Undecanoate

Some controversy has been reported regarding benefits and drawbacks associated with exogenous testosterone supplements. A number of studies have gained attention in recent years regarding the effects that it has on other hormone and metabolic functions and levels in the body. The study concluded that the use of exogenous test supplements decreased sperm production, contributing to potential for male infertility.

At any rate, the medical community defers to the side that the use of this type of therapy provides more benefits than risks and side effects. The type of exogenous test recommended by a doctor may depend on what is being treated. For example, different products would be recommended in the treatment of male hypogonadism, delayed puberty in males, as a palliative for breast cancer for women, and so forth. Controversy and disagreement regarding the types and severity of side effects through the use of exogenous testosterone therapy continues. Some side effects are temporary in nature and disappear after a few months of treatment. Most common side effects associated with this therapy can range from headaches to increase for the potential of coronary artery disease, gynecomastia, liver toxicity, and as a contributory factor in the development of prostate disease.

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