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250mg/ml (10ml vial)

Due to this combination of testosterones characterized as a strong anabolic and androgenic drug, it represents a stack of different esters, that contains 60mg of Phenylpropionate, 30 mg of Propionate, 60 mg of Isocaproate and 100 mg of Decanoate active substance. This mixture of bodybuilders is considered better and more efficient overall than any other testosterone alone. Bodybuilders experienced a rapid increase in strength and even an increase in solid mass during administration that produce stable testosterone levels within the body for a long period. It is considered a very good base for mass-building cycles and could be stacked practically with any oral or injectable steroids. Testosterone compounds aromatize less and cause less water retention in comparison with the administration of each separate testosterone. As with all testosterone, it is required a post cycle therapy with HCG and Clomiphene Citrate after 4-6 weeks of administrating the Testosterone Compound. The decreased water retention also makes Testosterone Compound a desirable steroid for bodybuilders and athletes interested in cutting up or building a solid foundation of quality mass.

Sustanon is a trade name owned by Organon Pharmaceuticals for oil-based injectable blends of esterized testosterone compounds. Made also by GENESIS.

Testosterone compound injection is a blend of four esterized testosterone compounds:

    30 mg testosterone propionate
    60 mg testosterone phenylpropionate
    60 mg testosterone isocaproate
    100 mg testosterone decanoate

The numbers in the names refer to the fact that the content of testosterone compounds in each blend is 250 and 100 mg/ml, respectively.

The different testosterone esters provide for different half-lives. Esterization of the testosterone molecules provides for a sustained (but non-linear) release of testosterone from the injection depot into the blood plasma.

While the intention of the mixed testosterone esters in Sustanon is to provide more stable serum testosterone levels, a single long-ester testosterone, such as testosterone cypionate or testosterone enanthate, may actually provide more stable serum testosterone levels.

Sustanon is the preferred method of testosterone replacement in the UK as detailed in the British National Formulary. There was a brief shortage of Sustanon 250 during late 2011, due to licensing problems and a further shortage in mid-2012 due to manufacturing problems.

This form of testosterone is a popular choice of anabolic steroid among bodybuilders and athletes.