Test prop works by making the muscles hold onto nitrogen, which means the muscles hold onto more protein. Holding onto proteins means better usage of energy, which subsequently means increase in muscle size and strength. Test prop has the ability to stop muscle wasting so you keep all of the muscle mass you worked hard at getting. There is no muscle wasting from the glucocorticoid hormones and red blood cell production is increased, which subsequently allows more oxygen to come in the body. Higher oxygen level in blood cells mean that you will not tire as fast and as much, what will than aid in recovery times as well.
I am always skeptical of using diet pills as I've had a lot that haven't worked. Let me just say I used 1 bottle without changing diet and didn't even work out, I know shame on me, but I've went from 137 to 131! I had a special buy one get one 50% off so I can't wait to see how much more I lose with the next. They seem expensive but with the way they work they're worth that money! Gives you a little jitters but you get use to it and If you eat a little something it helps. But you take it on an empty stomach so wait 30 to 45 minutes before eating.