While we are familiar with the Propionate ester the remaining three esters that create Sustanon-250 are almost always found as part of a mixture or compounded anabolic androgenic steroid .
Developed by Organon, the original idea behind Sustanon-250 was to provide a testosterone form well-suited for hormone replacement therapy that would only needed to be administered once every few weeks and for all intense purposes the idea was a success. For the performance enhancing athlete Sustanon-250 can be a fine choice but the idea of injecting only once or twice a month is not applicable here. As a performance enhancer this testosterone like all forms will need to be administered on a more frequent basis. This mixture carries with it two fast, short esters, Propionate and Pheylpropionate, a longer more moderate ester Isocaproate and the very slow and long Decanoate ester. In order to keep testosterone levels stable and at their peak most athletes will inject Sustanon-250 at a minimum of every 3 days and more commonly every other day for optimal results.
For more info see: Sustanon-250
Transdermal patches (adhesive patches placed on the skin) may also be used to deliver a steady dose through the skin and into the bloodstream. Testosterone-containing creams and gels that are applied daily to the skin are also available, but absorption is inefficient (roughly 10%, varying between individuals) and these treatments tend to be more expensive. Individuals who are especially physically active and/or bathe often may not be good candidates, since the medication can be washed off and may take up to six hours to be fully absorbed. There is also the risk that an intimate partner or child may come in contact with the application site and inadvertently dose himself or herself; children and women are highly sensitive to testosterone and can suffer unintended masculinization and health effects, even from small doses. Injection is the most common method used by individuals administering AAS for non-medical purposes. 
Bill, PLEASE stop the ridiculous generalizations. You are only demonstrating how much you don’t know, and wasting people’s time. “No one’s eating ‘whole’ wheat”. Absolute demonstrable nonsense. Many people ARE eating whole wheat products. Many people make their own bread, even grind their own wheat, even make it with older forms of wheat, and other whole grains. I used to make my own bread with organic whole-grain flour. “Their (sic) not God”. Nor are you. There is no way you can possibly know what “everyone” or “no one” is doing. There are actually numerous studies that show that eating whole grains in moderation is beneficial. Whole grains (excepting modern standard hybrid wheat) are REAL Paleo, as science shows that humans have eaten grains, and, yes, ground it to flour, for more than 30,000 years. But Paleo man used grains like any other plant food resource – as a small, seasonal part of a varied diet. BTW, I will say it again. Anyone that wants a citation on a specific scientific claim I have made, please let me know. I will be happy to post one or more. But, with literally thousands of original source references I have looked at over the years, and continue to read, I cannot post them all. Nor am I intending to do an anthropology or physiology tutorial here. This is Chris Kresser’s blog, and not “Burke’s Introduction to Evolutionary Biology 101”. Commenters can check out the numerous references Chris provides, or they can Google specific topics in which they are interested. If their interest is genuine.