Because the ultimate goal of a steroid cycle is to increase strength and muscle size, the associated spike in estrogen which accompanies steroids such as Testosterone is considered undesirable. In order to disassociate the two effects, two classes of drug are used. Medications such as Nolvadex or Clomid target the estrogen receptors. They make it more difficult for the estrogen to exert it’s influence within the body thus allowing the testosterone to act more freely. The second class is aromatase inhibitors such as Femara. They target the aromatase enzyme itself in order to prevent the production of estrogen in the first place. Sometimes, it’s not always clear which option you should go with or even what the differences are between the two. Lets clear that up a little.
Gone are the days where you could go to a doctor and get a script to buy steroids from a pharmacy, due to steroids being abused by athletes and bodybuilders they are now illegal. The only way to buy steroids now is on the black market, either from a dealer or from an online source. When steroids were legal and were purchased from a pharmacy, the only steroids you could get were pharmaceutical grade which were extremely high quality and worked far better than the “underground” stuff. Today pharmaceutical steroids are harder to get hold of and cost a lot more, for this reason many people opt for black market steroids which usually are lower quality and can cause infections due to them being produced in an non-sterile environment. Only injectable steroids need to cause concern when purchased from an underground lab, oral steroids don’t need to be produced in a sterile environment.