Creatine monohydrate is a supplemental form of creatine, which occurs naturally within the body for use in supplying energy, particularly to muscle.
Creatine supplementation is popular in athletes wishing to increase muscle mass. It has been shown to improve muscle output and performance. Long term creatine supplementation is considered safe and is not associated with kidney damage or serious dysfunction when taken in reasonable amounts.
Pure creatine supplements are considered safe, however dietary supplements may not be strictly regulated and contain other ingredients with unproven effects.