This mineral formula provides fully-reacted magnesium and potassium aspartate at doses backed by human research. Common "magnesium aspartate" and "potassium aspartate" supplements are actually blends of these forms with oxides, chlorides, and other inorganic salts. Studies show that true, fully-reacted magnesium and potassium aspartates at these doses provide support in conditions of subjective and neuromuscular fatigue, whether arising from exhaustion exercise or from less well-understood causes.