L Carnitine as Pre Workout Supplement: Guide The Science of Good Health I get asked so many questions about my pre workout combo, so here it is! I take Oxyshred + Acetyl L Carnitine. This combo gives me the energy I need to crush my workouts When to Take L Carnitine for Optimal Training Benefits Transparent Labs OEM Pre Workout L carnitine Slimming Preworkout Supplement Green Tea L Carnitine Gummies Alibaba.com Does anyone recommend any good pre workout L carnitine liquid supplements that gives you a massive pump during workouts and a good energy boost