Optimum Nutrition Amino Energy + Hydration Wild Berry 72 Servings

What the brand says

Energy + Electrolytes: Mix up ESSENTIAL AMIN.O. ENERGY + ELECTROLYTES any time you want a boost of energy, hydration*when taken with at least 10 fluid ounces of water, and electrolyte support. Each serving provides 100mg of caffeine from natural sources to support energy and focus plus 5 grams of amino acids and electrolytes, so you can always find a little more inside you.