Optimum nutrition gold standard® pre advanced - berry blast: advanced formula pre-workout optimum nutrition gold standard® pre advanced is an advanced formula pre-workout for intense energy, pumps, & sports performance. Gold standard® pre advanced provides 300 mg caffeine, 3. 2 g beta-alanine, and 6 g micronized l-citrulline per serving. 5 g creatine monohydrate 1. 2 g n03-t focus & energy strength training^ sports performance when used consistently over time, in addition to regular resistance exercise. . Optimum nutrition gold standard pre advanced - berry blast (20 servings)