Is it a magic powder?

Creatine increases the body's ability to produce energy quickly. Chad Kerksick, Ph.D., assistant professor of exercise physiology at the University of Oklahoma describes it like this, "If you can lift one or two more reps or 5 more pounds, your muscles will get bigger and stronger.

Research shows that creatine is most effective in high-intensity training and activities that require short bursts of speed. The use of creatine powder has been deemed to generally be safe to use. However, my standard advice applies, talk to your health care professional first since it's not for everyone and it's not without some side effects.