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 Liquid L Carnitine 3500MG Boost Your Energy Naturally Ripped Up Nutrition L Carnitine L carnitine 15ML (25minutes before workout), Pre workout 25minutes before workout 1 recommended scoop ., Step 1 : Add L carnitine supplements before workout, Step 2: Add cardio after workout 15 30 L Carnitine: Benefits, Side Effects, And Dosage, Per Dietitians Oxyenergys L Carnitine. My go to pre post workout supplement. Pre workout I usually take it before my workout session for energy production. Post workout Ill take it the day after my workout