One of the very few bodybuilding supplements that actually work, Dianabol, is a combination of both anabolic and anit-proteolytic compounds. The key to Dianabol's success is it is all about protein. Getting it, saving it and using it effectively to build rock-solid muscle mass. The active compounds in Dianabol signal muscles to snatch up more amino acids from the blood and then use them to create muscle protein at a faster rate through increased protein synthesis. The compounds in Dianabol also tell muscles to hang on to amino acids already within muscle by decreasing muscle-wasting activities within the muscle, creating a protein-sparing metabolism, and thus maintaining an anabolic state during times when normal protein breakdown occurs. In essence, Dianabol helps keep hard-earned muscle intact.