6 alpha-Bromodione is a competitive inhibitor of aromatase enzymes. Basically this means it works by way of binding to the active binding site of the aromatase enzyme resulting in prevention of interaction with other steroids that aromatize like test and the rest of our favorite male androgens. This is great for rapid binding and short term aromatase control, but unfortunately a competitive inhibitor will eventually let go of the enzyme and allow it to do feminizing things to manly hormones. So, only half of the job is done, but it has its important role as well.

At its simplest, 6-bromo sets off two crucial effects that can help make your PCT as successful as possible. The first effect, which is triggered by its 6-alpha-bromo component, is it creates a barrier that prevents test and other androgens from interacting with other enzymes, which can raise the chances that they will be converted by the body into estrogen through the process ofaromatization.

The second effect, which is initiated by its 6-beta-bromo component, is it acts as a mechanism-based irreversible aromatase enzyme inhibitor or "suicide inhibitor." Sure the whole thing sounds rather technical, but it simply means that 6-bromo is designed to stimulate an enzyme to irreversibly inhibit itself so it will only transform into a male hormone, particularly test.

6-bromo basically does this by binding to aromatase enzymes and making them inactive. When these aromatase enzymes are idle, the chances that test will be converted into estrogen becomes very low.