Creatine is naturally occurring in, for example, humans. Around 2 grams of creatine are consumed daily. Supplementation typically adds an extra 5 grams daily. Creatine, as with other supplements, must be taken with a great deal of water to prevent damage due to strain on the kidneys and liver. Creatine is not a steroid hormone, however, and can not give you b00bs.
I took creatine and now I'm a monster. UCF, shwing, creatine.