Speed Stack is pre-workout drink is not for everyone. Speed Stack is formulated for athletes who want better mental focus as well as those who want to mobilize body fat and glycogen for energy. There's a reason bodybuilders use stacks: they work. Creatine and glutamine work well together post-workout. Caffeine and arginine make an ideal pre-workout tandem. But stacking often requires multiple supplements, taken in varying forms, at different times throughout the day. Thankfully, that's not the case with Speed Stack a high-energy stack packed with caffeine, synephrine, yerba mate, octopamine, and other compounds sure to turn your energy dial up high. One drink, one stack. Speed Stack.Speed Stack Supplement Facts: Serving Size: Servings Per Container: Amount Per Serving % Daily Value* Calories 5 Sodium 45 mg 2% Potassium 140 mg 4% Total Carbohydrate 1 g Sugars 0 g DMAE (2-Dimethylaminoethanol) 100 mg Octopamine (as Octopamine Hydrochloride) 100 mg Proprietary MethXanth Stack 750 mg Percent Daily Values are based on a 2,000 calorie diet.Other Ingredients: Other Ingredients: Triple Filtered Water, Natural and Artificial Flavor, Citric Acid, Sucralose, Potassium Benzoate, Potassium Sorbate, Acesulfame Potassium, Phosphoric Acid, Natural Color, BHT (Antioxidant). Proprietary MethXanth Stack: Yerba Mate Extract (Ilex Paraguariensis) (Leaf) (Standardized for Caffeine, Methylxanthines, Theobromine, and Theophylline) (Total Caffeine from all Sources is 250 mg), Metabromine Cocoa Extract (Theobroma Cacao) (Fruit) (Standardized for Theobromine and Caffeine) (Total Caffeine from all Sources is 250 mg), Caffeine (as Caffeine Anhydrous) (Total Caffeine from all Sources is 250 mg), Advantra Z Bitter Orange Extract (Citrus Aurantium) (Fruit) (Standardized for Synephrine, N-Methyltyramine, Hordenine, Tyramine, and Octopamine) (Total Synephrine from Bitter Orange is 25 mg), Guarana Extract (Paullinia Cupana) (Seed) (Standardized for Caffeine) (Total Caffeine from all Sources is 250 mg).