Sustanon 100 is a lower dosed and rarely seen version of Organon's famous injectable testosterone medication Sustanon 250. Like Sustanon 250, Sustanon 100 makes use of multiple esters of testosterone to produce a desired slow-acting effect. In this case, three esters are utilized in the formulation instead of four. The main point of this is that different esters have different levels of oil solubility and rates of release from the site of injection. By combining fast and medium acting esters in the same formulation, the pharmacokinetic properties of this drug are such that the rapid distribution of testosterone (caused by the testosterone propionate) is followed by a slower and steadier release of hormone into the bloodstream. Lacking the slowest acting ester in the Sustanon 250 formula, namely testosterone decanoate, Sustanon 100 will not be as long acting overall. While Sustanon 250 is given every 3-4 weeks in clinical settings, Sustanon 100 would be most appropriate on a weekly or biweekly basis (still slow acting, with more even hormone release than testosterone cypionate or enanthate).
Sustanon 100:
| testosterone propionate | 20mg |
| testosterone phenylpropionate | 40mg |
| testosterone isocaproate | 40mg |
Bodybuilders usually inject Sustanon 250 once per week, despite the potential for longer durations in a clinical setting. A similar once per week pattern would seem most logical with this agent as well, and should provide a fairly "steady state" of hormone elevation within a few applications. It is likely that one would have a hard time distinguishing between these two drugs, in fact, given equal levels of supplied hormone. Given such a frequent pattern of use, however, one begins to question the need for a fancy multi-ester drug like Sustanon 100 (or 250 for that matter) in the first place. In a clinical setting, these agents are highly desirable, as the patient need not be subjected to as many injections. It is much more comfortable, and patient compliance goes up as a result. But once you eliminate the benefit of less frequent injections, such drugs start looking only like more expensive (and unnecessary) alternatives to single ester products like testosterone enanthate or cypionate. Ultimately they all supply testosterone; the appeal of one over the other has always been just a matter of injection frequency.
Anything that can be said for Sustanon 250, testosterone cypionate, or testosterone enanthate can be said of Sustanon 100 as well. All such drugs provide testosterone, which is a potent anabolic and androgenic steroid. Sustanon 100, therefore, should be equally capable of imparting rapid gains in size and strength.Typical doses for men would fall in the range of 200-600mg per week, or 2-6 1mL ampules of the drug. This can equate to less than comfortable injection volumes (especially at the 400-600mg per week and above range), making Sustanon 250 (or any 250mg/mL testosterone product) much more desirable by most. Also of obvious note is the fact that testosterone aromatizes to estrogen quite readily. All testosterones, including propionate, cypionate, Sustanon, etc., have an equal ability to produce estrogenic side effects.The rate of aromatization should not vary between esters, so do not let this be a selling point for you. There is not much else to say about this drug that hasn't been said about others of the same family. Sustanon 100 is a 100mg/mL injectable testosterone product, and will behave like a lOOmg/mL injectable testosterone product.