Nutrisport aspartame free creatine tablet is the natural energy source for muscle contraction during high-intensity training.
There is only enough ATP in muscle to sustain activity for a fraction of a second. It replaces the ATP which has been used up during muscle contraction, to allow the prolonged intense activity.
Energy from food is carried in the muscles by creatine itself, forming an effective biological energy transfer system.
It is not a drug and is used and endorsed by many top Olympic athletes.