To keep your body's muscular, digestive, nervous, and cardiac systems firing on all cylinders you need a consistent supply of all electrolytic minerals, not just sodium and potassium. Plus, in many instances, you require greater volumes of electrolytes than any sports drink or gel can provide. That is why Endurolytes fulfills such a crucial component of your fueling by supplying your body with a perfectly balanced, full-spectrum, rapidly assimilated electrolyte source, allowing you to meet your widely variable electrolyte needs with tremendous precision, hour after hour, no matter what the weather throws at you. 40mg Sodium, 60mg Chloride, 50mg Calcium, 25mg Magnesium, 25mg Potassium, 6.6mg Vitamin B-6, 1.6mg Manganese and 50mg L-Tyrosine. 120 Capsule per bottle.