This supplement contains 1500mg of the five amino acids that are important during exercise, and 4500mg of citric acid, which acts as an energy source, and dissolves in 500ml of water. It comes in a lemon flavor that makes it refreshing to drink even during exercise. Product contents: Fructose (made in the USA), salt/citric acid (Na), glutamine, arginine, leucine, calcium lactate, potassium phosphate, vitamin C, isoleucine, valine, sweeteners (aspartame, L-phenylalanine compound, acesulfame K), shellfish calcium, potassium chloride, flavoring, vitamin B2, seasonings (amino acids, etc.). Instructions: Store away from direct sunlight and in a cool, dry place.