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 Musclesport Pre Lean: A Thermogenic Pre Workout Revolution When Should You Take L Carnitine? MuscleTech If you're putting in the work but the scale isn't moving, your body might just need a little help tapping into its fat stores. That's where L Carnitine comes in. It's not a