I want to just get more defined muscles and bulk up a little more.
First and foremost it would be in your best interest to formulate a diet you think you can follow. Try and split your food over as many meals as possible, 5 is a real easy one to do. thats 3 meals, then a shake before and after the gym. In general you'll need 1gram of protein per pound of body weight. About the same in carbs. With about half your body weight, or less, in healthy fats, like nuts olive oil etc.
If your diets not in check there's no supplement in the world thats gonna help you. But if no, and cellmass give you a boost, or keep you in the gym then thats fine. Consistency is the name of the game.
Caloric Needs Calculator
Figure out your basic caloric needs, then if you want to gain weight add a few hundred calories, if you want to lose weight subtract a few hundred calories.
It will probly help to make a food journal to keep track of how much specific, total calories, fat, protein, carbs, sodium etc your eating every day.
Dont worry about taking a fat loss supp like lipo-6. If when you get to a point when you want to lose weight, cardio and diet is once again going to be the most important factor, plus theres better weight loss suppd on the market.
Feel free to ask as many questions as you want. If i can't help you, im sure someone here can.