Klean Electrolytes by Klean Athlete is a NSF Certified for Sport supplement providing specific nutrients in capsule form to help replenish electrolytes and retain hydration during or after exercise. Klean Electrolytes supplies sodium, potassium, chloride, calcium and magnesium to help replenish electrolytes and retain hydration. Electrolytes maintain a normal body fluid balance including osmosis, the cell's internal and external fluid pressure, and blood pressure. Hydration and electrolyte balance are critical to nerve and muscle function. For example, muscle contraction is dependent upon the presence of calcium, sodium, and potassium. Electrolytes lost during exercise, particularly workouts that are long lasting or strenuous, can lead to fatigue, dehydration, and muscle cramps. Athletes exercising in extreme heat or humidity, or for three hours or longer continuously, risk dehydration. Klean Athlete is tested and certified by the NSF Certified for Sport program, which was created to meet the growing demands of athletes, coaches and healthcare professionals to certify that sports supplements are safer and free from banned substances. Every product that carries the NSF Certified for Sport mark has undergone stringent laboratory testing to confirm content, purity and compliance. Klean Electrolytes is indicated for athletes that require supplemental electrolytes for hydration to help achieve optimal performance. Suggested Use: As a dietary supplement, take one capsule prior to, during, and after workouts or as directed.