The list of benefits truly go on and on; higher endurance due to increased red blood cell production, higher nutrient absorption resulting in a more anabolic machine; increased sex drive and of course a greater sense of well-being. Unfortunately, as is with all steroids and all medications for that matter, Test-Cypionate does carry the possibility of negative side-effects. The negative side-effects are often dose dependent, meaning, the higher the dose the greater the risk but some will take this risk as a higher dose will yield greater results. Estrogen conversion of the hormone is a very real thing and most users of the hormone will be best served by taking precaution. As the conversion to estrogen can lead to aromatizing effects, if we supplement our use with a good aromatase inhibitor we can often reverse these effects and enjoy use without any problems. Such problems can include excess water retention, Gynecomastia , high blood pressure and high cholesterol to name a few. It should be noted, that while proper use is very important, proper and healthy nutrition can greatly lend to keeping your blood pressure and cholesterol in line.