This drug was highly sought after as a "superior" version of testosterone in the late 80s and through the mid 90s. No doubt this is partly due to the very nice write-up Dan Duchaine gave it in his newsletters. However, lets keep in mind that this drug was designed for convenience, not athletics or bodybuilding. The advantage to this drug, according to the manufacturer, is that it can be injected once a month, and the different esters would provide different timed releases over that month, and the patient would therefore only need to visit the doctor once a month for his shot. For athletes or bodybuilders (who routinely use between half a gram and a gram of testosterone per week), this product is really no better than any other form of injectable testosterone.
Lately, it seems that this product has fallen out of favor with Steroid.com members, as many feel that the inclusion of the Propionate and phenylpropionate estered forms of testosterone in this blend would necessitate shooting every other day. This stems from the fact that testosterone propionate would be shot every other day at least, and testosterone phenylpropionate would generally be shot every third day.
Sustos will do exactly what other forms of testosterone will do:
Testosterone will cause both muscle growth as well as fat loss. It sends a message to muscle cells to store more contractile protein (called actin and myosin), thus making your muscles grow. It also protects your muscles from catabolic (muscle wasting) glucocorticoid hormones(1). Thus it is often said that testosterone is not only anabolic, but it is strongly catabolic. Not only does it cause an increase in size of the muscle fibres (hyperfascia) but it also can change the appearance and the actual number of muscle fibres (Hyperplasia)(2). Testosterone has the ability to increase erythropoiesis (red blood cell production) in your kidneys(4), and a higher Red Blood Cell (RBC) count may improve endurance by producing more highly oxygenated blood. More RBCs can also improve recovery from strenuous physical activity. Agression levels often rise dramatically with the use of any exogenous testosterone (3). Testosterone improves muscle contraction by increasing the number of motor neutrons in muscle(5) and improves neuromuscular transmission(6). It also promotes glycogen synthesis(7)