Optimum Nutrition Gold Standard Pre-WorkOut Blue Raspberry (330g). Ready to mix food supplement powder with amino acids, caffeine and vitamins with sweeteners.. 175 mg of caffeine from natural sources to help increase alertness and focus before training. 3 g of Creatine for power and performance. Vitamins B 1, B 3, B 5, B 6 and B 12 which all contribute to normal energy yielding metabolism. Now with 250 mg of performelon per serving. Vitamins b6 & b12 to support normal energy yielding metabolism
