Sustanon 250 Sustanon 250 is an oil based injectable testosterone blend. Its designed to provide a fast and extended release of testosterone. Propionate and phenylpropionate esters are quickly utilised, releasing into circulation within the first four days. The remaining esters are much slower to release, staying in the body for about two and three weeks therefore keeping testosterone levels more steady for longer. As a result , less need for multiple weekly injections. This is a big improvement from standard testosterones such as cypionate or enanthate, which provide a much shorter duration of activity, and a more variable blood level. Sustanon sphinx pharma broken down- 30mg testosterone propionate 60mg testosterone phenylpropionate 60mg testosterone isocaproate 100mg testosteron decanoate As with all testosterone products, sustanon is a strong anabolic with pronounced androgenic activity. Used mainly as a bulking drug it provides exceptional gains in strength and muscle mass. Although it does convert to estrogen, as is the nature of testosterone, this injectable is noted as being slightly more tolerable that cypionate or enanthate. Blood levels of testosterone are building more slowly, so side effects do not set in as fast. For equal blood hormone levels however, testosterone will break down equally without regard to ester. Many individuals may likewise find it necessary to use an anti-estrogen, in which case a low dosage of Nolvadex or Proviron would be appropriate. Also correlating with estrogen, water retention should be noticeable with sustanon. This is not desirable when the athlete is looking to maintain a quality look to the physique. So this is certainly not an ideal drug for contest preparation. Dosage: An effective dosage ranges from 250mg every 10 days, to 1000mg weekly. Instead of taking unnecessary large amounts, athletes interested in rapid size and strength will usually opt to addition another compound, such as Anadrol 50, Dianabol, Trenbolone or Winstrol.