GP Sust 270 by Geneza Pharmaceuticals is an injectable steroid which contains the hormone testosterone in five different esters equaling a total of 270 mg. Each ML of GP Sust 270 contains the following: 20 mg of Testosterone Acetate, 30 mg of Testosterone Propionate, 60 mg of Testosterone Phenylpropionate, 60mg of Testosterone Isocaproate, and 100mg Testosterone Decanoate.
GP Sust 270 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, GP Sust 270 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 GP Sust 270, growth hormone or thyroxin during the stacking phase.
GP Sust 270 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 GP Sust 270 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 GP Sust 270 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.
Woman bodybuilders often use testosterone to build mass, although of course the dosage is significantly less than what males would use due to the possibility of masculizing side effects.
The male bodybuilder’s dosage of this steroid would typically be in 400-1200mg per week range and cycle duration would be from 8-20 weeks, depending of course on the goals of the athlete. Women typically see desirable results from doses of 50-100mgs per week.