According to the aggregate data from a number of scientific studies, despite its conservative nature, Primobolan was proven to provide significant increases in muscle development in a reasonable amount of time. Another interesting fact that was discovered during the testing of this compound was the fact that it effectively bound itself to the AR. In fact, Primobolan was able to bind itself to the AR more effectively than naturally produced testosterone. This is huge because the ability to effectively bind to the AR allows Primobolan to be one of the most effective fat-burning compounds available. Positive AR binding has been directly correlated with lipolysis.