Muscle Energy 100
Amount Per One (1) Tablet:
Magnesium (as Magnesium Glycerol Phosphate) 10 mg.
ATP ( as Adenosine Triphosphate) 100 mg.
Ingredients:
Adenosine Triphosphate, Magnesium Glycerol Phosphate, Fructose, Manitol, Natural Flavors, Cellulose Gum, Magnesium Stearate.
Most companies don't make this pure ATP product because the "average Joe/Jane" simply doesn't need it. However, for many years, athletes and hardcore fitness enthusiasts have benefited from it's short-term energy boost -- especially during competition or "reps-to-exhaustion" sessions.
Here's how:

Adenosine Triphosphate (ATP) is produced by every mitochondria cell within the human body. It is the result of a long chain of metabolic processes whereby a variety of substrates are transferred from the foods you eat, especially carbohydrates. Although the clinical science is still "out" to fully understand and explain the nature of this unstable compound there is plenty of anecdotal evidence of its effectiveness -- especially among athletes.

Adenosine triphosphate (ATP), the energy currency or coin of the cell, transfers energy from chemical bonds to endergonic (energy absorbing) reactions within the cell. Structurally, ATP consists of the adenine nucleotide (ribose sugar, adenine base, and phosphate group, PO4-2) plus two other phosphate groups.

The ATP-to-ADP conversion releases energy that directly causes muscle contraction. An Energy 100 tablet placed and dissolved under the tongue has been shown to provide a short-term boost of energy. This is perfect for athletes involved with interval training, reps-to-exhaustion sections or extra difficult sections of competitive events.

This sublingual (under the tongue) formula allows for direct absorption through the mucosa of the mouth and throat. By doing so, the formula gets directly into the bloodstream and avoids the stomach.

Ultimately, however, it comes down to whether or not it is effective for you. As with all supplements, the issue of "uptake" is of utmost importance. It is individual and varies from product to product and from person to person. You will be the judge of its effectiveness.