Optimum Nutrition Essential Amino Energy is designed for anytime energy and muscle recovery support. Each serving contains 100 mg of caffeine sourced from coffee beans and tea leaves, providing a natural boost in energy and focus. Additionally, it includes 5 grams of amino acids to aid in muscle recovery. This versatile workout supplement can be mixed at any time to enhance performance, whether you are powering through a long day or elevating your workout. With micronized free-form amino acids for quick absorption, Essential Amino Energy supports recovery before, during, and after exercise, making it an ideal choice for active individuals.