The term 'Creatin' refers to an artificial chemical found in our body. The creatin are stored in the body muscles. It is basically a source of energy for muscle contraction and in muscle growth. Creatine is also used as a medicine for the treatment of athletic performance, and for increasing muscle strength in people with heart failure, muscular dystrophy, and McArdle's disease. The creatin is also found in meats and fishes. It can also treat high cholesterol, depression, bipolar disorder, etc.