Hey bro,
Its not really designed as such, however that may be a side effect that you get. Actually it was designed as a heavy bulking agent and IT WORKS DAM GOOD AS SUCH! as long as you feed it properly.
I also noticed that for me if I take one an hour or so before my workout it acts like Deca, makes my tired old joints feel fine! That was with the V.1 anyway. Really really loved that stuff.
I think that on the later versions that effect may be gone but it still works very well for bulking and strength.
I can tell you this much, it will be first on my list to put with any Test bulking stack, no doubt about it.