Gold Standard Pre-workout by Optimum Nutrition is a premium supplement designed with a complex blend of ingredients to increase workout performance. Benefits & Features Add spectrum of vitamins and minerals for maximum health and vitality Enhanced mental clarity and focus Supports endurance and energy Supports exercise intensity and power output This blend combines a spectrum of vitamins and minerals, a muscle matrix formula, performance enhancing ingredients and energy and focus complex. As an Optimum Nutrition branded product, you can trust the proven quality to deliver endurance, energy and mental focus. Aside from key vitamins and minerals, in this powdered supplement you’ll also find popular ingredients such as creatine, beta alanine and L-citrulline. Creatine monohydrate is known to help increase exercise intensity and power output. Not only that, but beta alanine and citrulline are often added to pre workout products to increase the production of nitric oxide in the blood. All three ingredients are also common within endurance athletes to help maintain a high intensity for an extended period of time. How To Use Mix 10g (about 1 scoop) in 180-240mL of cold water and consume 15-30 minutes before working out. This product contains caffeine and is not recommended for children, women who are pregnant, trying to get pregnant or lactating, or individuals who are sensitive to caffeine.