What is Creatine? Creatine is a naturally occurring ingredient that turns into creatine phosphate when introduced into the body. Creatine is a substance that is found naturally in muscle cells and is what gives cells a full look. Creatine is an amazing ingredient to take pre-workout since it has been clinically shown to help improve muscle mass, increase power output, and maximize recovery. Cutler Nutrition's Creatine contains 5 grams of creatine monohydrate per serving, making it dosed perfectly to take pre or post workout to help maximize your lean muscle mass and performance goals.