Gold standard pre workout is a brilliant new launch from optimum nutrition it delivers a unique and proven blend of caffeine creatine beta alanine citrulline and l carnitine this is the gold standard pre workout youve been searching for specially formulated to deliver a pre workout you can trust it contains only essential high quality active ingredients to optimise every effort you put in each great tasting drink delivers 175 mg of caffeine from natural sources 3 g of creatine to inc