Creatine is one of the few supplements that has been tested in the fitness world that has actually produced results. Usually a supplement is offered to the fitness community on hype alone and has no real scientific backing.
Creatine helps the bodybuilder by adding water to the muscle which gives added boost towards the end of an exercise. For example, after proper loading, a user will notice a small strength gain and a few added reps to a previous exercise. Most users will be able to add 10-20 pounds on their bench press while being able to add an extra 3-4 reps on their final sets.
It is important that the athlete planning on taking creatine takes some precautionary steps before, and while taking the supplement. Creatine demands that more water be ingested during the workout and after during recovery. Most athletes won't feel anymore thirsty than usual but it is important that they drink plenty of fluids regardless. If tese extra fliuds are not taken, then cramping will occur and the muscles will look "flat" because of the lack of fluid.
Proper warmup is essential to protect the users tendons and ligaments especially because of the added strength and endurance of creatine.
With proper precautions and use, creatine is one of bodybuilding's best known supplements!