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First Endurance EFS Drink Mix: Mild Grape 25 Serving Canister

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First Endurance Electrolyte Fuel System helps reduce cramping and dehydration while promoting water absorption.
Contains over 160mg of all 5 electrolytes per serving
AjiPure amino acids are the purest source of free-form amino acids available
EFS formulas utilize two unique sources of calcium and magnesium; DiCalcium malate and Dimagnesium malate have superior bioavailability compared to other mineral sources