L Carnitine LS3 3000 Concentrated Liquid Fat Burner And Metabolism Activator : Target O2 Pure L Carnitine transfers long chain fatty acids, such as triglycerides into mitochondria, where they may be oxidized to produce energy. In other words L Carnitine helps our body to use fat as Acetyl L Carnitine Supplement: Uses, Benefits, Side Effects, Dosage, A Welltopia Pharmacy Nutrex Liquid Carnitine 3000 Bodybuilding.com