creatine doesnt help u to get a harder body-it just gives your muscles more energy to help you go on longer-thus enabling you to get faster results, depending on how you find it. It helps improve performance-rather than build you up.
if you want a supplement to help you get more toned, then youu need whey protein-as its protein which ur body needs to gain muscle/ tone up.
Any form of training will increase your protein requirements. A lack of quality protein will result in loss of muscle tissue and tone, a reduced immune system, slower recovery and lack of energy. If your goal is to put on muscle and increase strength or even reduce bodyfat, whilst keeping definition and tone, extra protein from high quality sources is a must.
with this-u must also eat carbs, lots of veg, good fats like olive oil, avocados etc and plenty of water.
15-20mins cardio warm up then resistance the rest of the time. do less reps-but make them harder