Creatine is an amino acid used by the body to provide energy. It helps volumize muscle (makes muscles larger), increases strength and power, and provides energy to the muscles.
Creatine also reduces oxidative stress, improves glucose metabolism, and increases bone mineral density. For an in-depth look at creatine's lesser-known benefits, check out Dr. Kendall's article, 6 Reasons Everyone Should Take Creatine.
It is common practice to "load" creatine for five to seven days in order to super-saturate the muscle, before continuing on to a "maintenance" amount; however, this is not needed. While loading might shorten the time it takes for creatine's effects to kick in by a week or two, we recommend keeping it simple by just taking a small, daily dose from the start. Creatine can be taken indefinitely, without ever needing to cycle off of it.