Sustanon 250 is an oil-based injectable testosterone blend, developed by Organon. It typically contains four different testosterone esters: testosterone propionate (80 mg); testosterone phenylpropionate (60 mg); testosterone isocaproate (60mg); and testosterone decanoate (100 mg), although a lower dosed version is also produced. An intelligently “engineered” testosterone, Sustanon is designed to provide a fast yet extended release of testosterone. The propionate and phenylpropionate esters in this product are quickly utilized, releasing unbound testosterone into circulation within the first four days. The remaining esters are much slower to release, staying active in the body for about two and three weeks (respectively).
As with all testosterone products, Sustanon is a strong anabolic with pronounced androgenic activity. It is mainly used as a bulking drug, providing good gains in strength and muscle mass. Although it does convert to estrogen, as is the nature of all testosterone based products, this injectable is noted as being slightly more tolerable than cypionate or enanthate. With Sustanon, blood levels of testosterone rise gradually, so side effects do as well. All estrogenic side effects are noted with this compound, unless steps are taken to minimize estrogen.
Many individuals use a combination of Nolvadex and Proviron, while others use an anti-aromatase like Arimidex, Femara, or Aromasin, to help control estrogen related side effects.
Although Sustanon remains active in the body for approximately three weeks, injections are taken at least every 10 days. An effective dosage ranges from 230mg a week, to 1000mg weekly. Some athletes do use more extreme dosages, but this is not a recommended practice. When the dosage rises above 750-1000mg per week, increased side effects will no doubt be outweighing additional benefits. This practice will receive a poor return on one’s investment, which with Sustanon can be substantial. Instead of taking unnecessarily large amounts, athletes interested in rapid size and strength will usually opt to stack another compound. For this purpose we find that Sustanon stacks extremely well with potent orals such as Anadrol and Dianabol. On the other hand, Sustanon may work well with Trenbolone or Winstrol if the athlete’s goal is to maintain a h arder, more defined physique.