Gold Standard Pre-Workout, Green Apple from Optimum Nutrition is a pre-workout supplement that combines plant-based caffeine with creatine monohydrate and beta-alanine to help you unleash energy, focus, performance and endurance. Gold Standard Pre-Workout was created to offer a pre-workout supplement based on high-quality, researched ingredients, tested for banned substances according to the Informed Choice certification and with a proven track record of use and understanding. Benefits: Contains only proven ingredients 175 milligrams of caffeine to help fuel your mind and body to train at your peak level 3 grams of creatine helps support overall performance 1.5 grams of beta-alanine helps support greater endurance 7 50 mg L-citrulline, a precursor to nitric oxide 375 milligrams of Acetyl L Carnitine HCL 250 milligrams of N Acetyl l Tyrosine 30 portions (in 300g tub) It is recommended to mix 10g (approximately 1 scoop) in 180-240ml of cold water and consume 15-30 minutes before training. Store in a cool, dry place.