Look, every single person in this world has about 3.5 grams of creatine per kilogram of muscle. This is because creatine is a natural thing found in foods such as red meats, so when you start taking supplemental creatine you're just increasing the amount of creatine per muscle that you already have. What creatine does is that it bonds with ADP (unusable energy) and turns it into ATP(usable energy), it also draws water to your cells which makes you look bigger .