Creatine is one of the most widely used supplements. It works by brining water directly to the muscle fiber, which them gives a fuller appearance. As well it helps speed muscle recovery and increases the muscle stamina. It will help with strength, making you push more which then makes the muscle grow, obviously. Creatine and whey protein are a good combo for supplementing, just be sure to drink alot of water and cycle creatine use as with prolonged use, it can start to harm the kidney and liver. By doing 2 months on and 2 off there should be no ill effects. There is no need to go the loading phase that they put on the directions of the product, as the body can only use a small portion of creatine at a time, so if you use a bunch of it like they say on the label, you just end up peeing it out.