Creatine vs Carnitine: Do You Need Both? Differences Explained FeastGood.com 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 Difference between L Carnitine and L Carnitine L Tartrate Natural Pre Workout Sugar Free L Carnitine Supplement L Carnitine Gummy Candy for Women and Men L Carnitine Base and L ( ) Carnitine