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.
Some bodybuilders and athletes use trenbolone esters for their muscle-building and otherwise performance-enhancing effects.  Such use is illegal in the United States and many other countries. The DEA classifies trenbolone and its esters as Schedule III controlled substances under the Controlled Substances Act .  Trenbolone is classified as a Schedule 4 drug in Canada  and a class C drug with no penalty for personal use or possession in the United Kingdom .  Use or possession of steroids without a prescription is a crime in Australia . 
Hey I’m 18 and have been lifting since I was in 7th grade and am now a senior. I’m interested In the dball cycle over the dianabol but have a few questions. The first question is do I need to take a test booster with it? Although it is recommended Ik if you mess with your body’s natural production at a young age it can screw up your production of it. My next question is about after you finish it. I’m seeing stuff about if the effects last and what I’m asking is if the dball effects of muscle growth wear off or do you lose the muscle you gained. What iv got from reading is if you just take the pills daily without test booster which is my option I’m really wanting to take, after my cycle runs out I won’t just lose muscle or stop growth will I? Thanks for you’re time and get back to me asap as I’m looking to order it soon