10ml – 300mg/ml

Sustanon is a generic name for an oil based formulation of testosterone. In essence it is a mixture of testosterone propionate (30mg), testosterone phenylpropionate (60mg), testosterone isocaproate (60 mg) and testosterone decanoate (100mg). The different proportions of the esterified mixtures provide different half lives. This provides for a continuous release of testosterone from the injected site. Sustanon was widely used for the treatment of a few medical disorders in Europe. The drug was useful to treat infertility and administered once a month. While Sustanon has been heavily touted by athletes and bodybuilders as a drug of choice, a single formulation of testosterone enanthate or Cypionate can do the same thing. The combination of esters is better suited for the treatment of medical disorders and not for bodybuilders. One negative aspect about Sustanon is that it does remain in the body for a very long time and can be easily detected in the urine.

Besides being an anabolic agent, Sustanon also has the ability to increase the production of red blood cells. This results in more oxygen carrying capacity and hence more exercise endurance.


Sustanon has been used widely by bodybuilders in the past. Why this testosterone formulation is preferred by some is not well understood. Some claim that there is less water retention and more muscle build up. However, like all testosterone products, Sustanon is converted to estrogen in the body and can cause gynecomastia and water retention. To get rid of the water many builders also use diuretic medications.

Many bodybuilders use a combination of Sustanon, growth hormone or thyroxin during the stacking phase.

Sustanon is taken for 4 weeks and then a wash out phase is undertaken. During the wash out phase, some athletes take clomiphene, tamoxifen or Arimidex. Because the Sustanon suppresses the hypothalamic pituitary axis, a profound suppression of testosterone synthesis in the body occurs. For this reason it is important to taper off the drug slowly. It is recommended that one take 1-2 injections a month and then stop for a month. During the wash out phase, a mild anabolic steroid can be used, or one can use growth hormone/thyroxin.

The weight gain is gradual but significant. Most builders can expect weight gain of at least 15-25 lbs in 2-3 cycles (months). The other aspect of Sustanon which has been observed is that it can significantly increase exercise endurance and provides for spontaneous bursts of energy. This has been linked to its effect on the red blood cells and the increased oxygen carrying capacity. Others claim that Sustanon can also increase the recovery time following an injury.

Because of its very long half life, Sustanon is best used during the off season.


Sustanon is only administered via an intramuscular injection. It is typically injected in the buttock area every week. The dose of Sustanon usually starts off at 250 mg/week and gradually increased during each cycle. Some athletes use doses as high as 1000 mg/week. Once injected, Sustanon remains in the body for about a month. For the majority of bodybuilders, a dose of 250-500 mg/week should be sufficient.

Side effects

Like all anabolic steroid, Sustanon also has side effects. Even though the side effects are rare, most builders will develop them when the drug is used for a long time. The most common side effects include:

general fatigue
mood changes- depression, anger, anxiety, insomnia
hair loss
retention of water
changes in liver enzymes
liver masses
testicular atrophy
acne, oily skin
The majority of these side effects reverse when the drug is stopped. It is important that all individuals who use anabolic steroids have a follow up with a physician to monitor their liver. Rare cases of liver failure and cancers have been reported.


There are also some women who take sustanol for bodybuilding. However, the drug is a potent androgen and can cause virilizing effects. The typical virilizing effects include deepening of voice, excess hair growth, clitoral enlargement and bone growth. Some of these virilizing effects are not reversible even when the drug is stopped.

Unlike most other anabolic steroids, Sustanon is widely available on the black market. The drug is manufactured in Eastern Europe, Germany, Thailand, and México and there are also illegal laboratories in the USA who also manufacture the product. The vials of Sustanon come in various dosages. The 1000 mg vial costs anywhere from $10-$20. Like all anabolic steroids, there have been reports of fake and counterfeit products. The Mexican formulation of Sustanon is less expensive but again the quality and purity are questionable.


Sustanon is classified as a schedule 3 drug under the controlled substance act. It is not legally available in the USA. Possession, distribution or promotion of its sale is considered illegal.


One of the negative things about Sustanon is that it has a very long half life in the body. The steroid and its metabolites can be detected in the body for 1-4 months after the last injection.