CAS No: 58-20-8
Molecular formula: C27H40O3
Molecular weight: 412.61
Assay: 99% min
Appearance: white crystalline powder
Quality standard: USP32
Effective Dose (Men): 300-2000mg+ week
Testosterone is the primary man sexual hormone, which directly affects testicles and prostate development, has a large impact on building the muscle tissue, bone density and strength. Moreover, testosterone is to a great extent responsible for dozens of functions in human body: common health, well-being, enhanced libido, energy, immunity, preventing Osteoporosis (loss of bone density), and possible protection against heart disease. Maintaining higher testosterone levels in elderly men has been shown to improve many parameters that are thought to reduce cardiovascular disease risk, such as increased lean body mass, decreased visceral fat mass, decreased total cholesterol, and glycemic control.
It determines not only gender differences, but, for example, regulates the population of thromboxane A2 receptors on megakaryocytes and platelets and hence platelet aggregation in humans. It is responsible for behavior, mood, romantic relationships, as per reports it can impact even carrier choice. The studies report that attention, memory, and spatial ability are key cognitive functions affected by testosterone in humans. Preliminary evidence suggests that low testosterone levels may be a risk factor for cognitive decline and possibly for dementia of the Alzheimer’s type, a key argument in life extension medicine for the use of testosterone in anti-aging therapies.
Testosterone as the natural product drug and one of the most widely used anabolic steroids, is the most convenient choice for a reference drug to which all others will be compared. And while it is entirely possible to construct maximally-effective steroid cycles without employing testosterone, most do not do this, but instead use testosterone as their foundation. Either approach can be entirely sound.
As a bodybuilding drug, testosterone is almost always used as an injectable ester, due to poor oral bioavailability and the impracticality of high dose transdermal or sublingual delivery. Testosterone also is provided as an injectable suspension.
Discussion here is in reference to these injectable preparations. Pharmacologically, testosterone acts both via the androgen receptor and via other means. In practice, it is found to combine synergistically both with those anabolic steroids categorized as Class I and those categorized as Class II, and therefore is described as having mixed activity.





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