No offense, but based on this question alone, the answer is a resounding neither!!
You need to do alot of research as you have clearly not done so thus far. Furthermore, at 126lbs (I don't care that you're 5'6, I know 5'6 guys that are in the 190 range naturally) you clearly do not know how to eat properly, and adding gear to the mix will do absolutely nothing for you, I can promise that.
Get over to the diet section and start a thread there. Introduce yourself, post up what you eat, and we'll help sort you out over there. You need proper diet and training principles, not steroids. Trust me on this one.
