Zentec ProvironAlso called Mesterolone, Proviron is an anabolic steroid and an orally active form of DHT (Dihydrotestosterone) that is commonly used for it’s anti-estrogenic activity and its ability to help maintain libido throughout a cycle. It works by binding weakly to the estrogen receptor without activating it, and to the aromatase enzyme. In the first case, this partially reduces the number of receptor sites momentarily available to bind estrogen, thus reducing estrogenic activity. In the second case, some fraction of aromatase molecules at any given moment are unavailable to bind and convert testosterone as their binding sites being occupied with Provision.
Some bodybuilders choose Proviron for contest preparation because it adds density and definition. Androgen receptors are found in fat cells as well as muscle cells and DHT binds so well that there’s a distinct fat burning effect from its use. The downside to Proviron is that since it contains no anabolic properties, it will not result in much muscle growth if used alone, so it’s best to use it wisely in a combo.