Oxygen capacity composite, is a complex containing phosphates, potassium, sodium and calcium, the active ingredients that increase the production of cellular energy and supplemental electrolytes and nucleotides (uridine monophosphate, cytidine triphosphate). Potassium phosphate (in the form of dipotassium posphate) is a combination of phosphorus and potassium (classified as macronutrients) in one molecule. Potassium affects cell volume (level of hydration) and provides proper the acid-base management. In the cellular system and the circulatory system it is a calcium antagonist. Phosphorus is the building substance of bones and guarantee their proper functioning, causes the development of nucleic acids and brain tissue, and is involved in the phosphorylation process. It is involved in the synthesis of high energy compounds. Sodium phosphate - a single molecule of sodium and phosphorus (macronutrients). Sodium is involved in the stabilization of water and electrolyte balance of the body and stabilizes the acid-base balance and blood pressure. Phosphorus is the ingredients of bone, guarantees the proper development of nucleic acids and brain tissue. Di-calcium phosphate is a combination of phosphorus and calcium (classified as macronutrients) in a single molecule. Calcium is the building substance of bones, teeth and activator of enzymes, including ATP-ers releasing ATP energy. It affects the blood coagulation and muscle-nerve conductivity. The complex is available at www.muscle-zone.pl.