L Carnitine as Pre Workout Supplement: Guide The Science of Good Health Amazon.com: Alpha Supps L Carnitine Liquid 3000 Stimulant Free Fat Burner Supplement for Men & Women Pre Workout Energy Boost & Muscle Recovery Zero Sugar, Fat, & Carbs 31 Servings ( OEM Gym L Carnitine 1000mg Gummy Pre Workout Supplement Liquid L Carnitine supports fat metabolism and energy production by helping your body turn stored fat into usable fuel. Fast absorbing, stimulant free, and zero sugar or calories, it's a great pre workout option to boost 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