First Endurance EFS is an ideal blend of simple and complex carbohydrates, amino acids, antioxidants, Malic acid and electrolytes, offering athletes the essential nutrients necessary to increase their endurance during exercise. The improved formula is incredibly fine and mixes instantly, delivering the highest electrolyte content available (1160mg of all 5 electrolytes), and eliminating the need to carry extra electrolyte capsules. EFS is designed to be mixed at varying strengths, depending on the needs of your workout. 25 servings.
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