CREATINE

 Creatine supplementation can increase strength, power, and lean muscle mass, and is one of the most popular sport supplements ever produced. It is naturally
  in your body from the amino acids methionine, arginine and glycine. Eating 2.5 lbs of steak with provide you with 4.5 grams of creatine. Creatine is an energy  source. When you train you utilize your body's first source of energy which is ATP (adenosine tri phosphate) When the ATP has been burned off your body relies  on your next energy source which is creatine phosphate. The problem is that your body can not reproduce either energy source fast enough during your  workout. You start to fatigue and don't get that full muscle contraction necessary to get a great workout. The creatine benefit helps build up your body's stores  of creatine providing you with a full muscle contraction through your workout allowing to get that extra rep or two, or stepping up to an extra set using heavier  weights. See creatine product information for creatine loading and usage.

Fitness Connection recommends these Creatine supplements

Manufacturer Product     BSN CellMass Champion Nutrition Power Creatine IDS Muscle Volumizer Gaspari Size On Metabolic Diet Creatine Advantage Muscletech CellTech Hardcore Muscletech Creakic Nutrex Vitargo CGL Optimum Nutrition Creatine 2500 Prolab Creatine Monohydrate