Nutritionn Creatine Monohydrate is a natural supplement that increases lean muscle mass when used in conjunction with a resistance training regimen. Creatine monohydrate is one of the most popular bodybuilding and workout supplements. The way creatine helps increase lean muscle mass is it allows you to lift heavier weights, do more reps, and recover quicker. The premium supplement contains only creatine monohydrate, which is micronized to enhance its effectiveness. This is a great tool to add to your diet to increase your gains in the gym.