Have you looked at the diet section at all? You do realize that you need food in order to grow, lots of it. Muscles do not appear out of thin air, it takes protein/fat/carbs/cals to build them. You need to learn to start eating a lot so your body gets used to it and I guarentee you that you will grow on trying to eat huge. Forget about AAS right now. What your looking for is a "magic" substance to put on muscle fast and AAS WILL NOT do that without the proper diet to bulk.