Optimum Nutrition Gold Standard Pre-Workout Powder helps improve energy focus and performance when taken consistently over time with regular resistance exercise. Made with caffeine creatine monohydrate and beta-alanine this shake powder helps support endurance and alertness. This pre-workout drink mix helps you reach your goals whether you want to reach the pinnacle of your game crush your next set or get that last rep. Each serving of this delicious Green Apple-flavored powder provides 175 milligrams of caffeine 3 grams of creatine monohydrate and 1.5 grams of beta-alanine. Optimum Nutrition powder mixes easily using a shaker cup. There are 30 servings in this 300 gram container. Gold Standard Pre-Workout Powder from Optimum Nutrition the Worlds #1 Sports Nutrition Brand.* *Source Euromonitor International Limited; Consumer Health 2023 Edition Sports Nutrition category %retail value shares 2022 data.