Taking a preworkout AND carnitine? It is important to get the timing of each supplement right to get the best results with both. Watch as Phil explains the best way to combine them. , #preworkout Does anyone recommend any good pre workout L carnitine liquid supplements that gives you a massive pump during workouts and a good energy boost Pre Train Elite Superior Supplement Products Science First Designs for Health Can You Take Pre Workout And L Carnitine Together Should I use L Carnitine on rest days or just before workouts?