Testosterone Mix, also known as testosterone mix, is usually a combination of at least two testosterone esters with different concentrations. Examples of classic and iconic preparations from this group are Omnadren 250 and Sustanon 250mg. Both are oil preparations consisting of four different testosterone esters. When administered intramuscularly, these esters are absorbed at different rates.

Sustanon 250mg contains testosterone esters with different release times, which means that it delivers testosterone to the body gradually. These ingredients include testosterone propionate, phenylpropionate, isocaproate and decanoate. Similarly, Omnadren 250 combines the esters: testosterone propionate, phenylpropionate, isocaproate and decanoate.

The use of a testosterone mix is ​​intended to provide a steady release of the hormone, minimizing the need for frequent injections.