Should I use L Carnitine on rest days or just before workouts? Weight Loss & Carnitine: Unveiled Secrets, Pro Tips. L Carnitne, good to take when you want to burn calories and when losing weight. Very important in fat loss Take responsibly #L carnitine #gym #workouts #fat loss L Carnitine 3000 liquid is designed to boost fat metabolism, enhance energy production, and improve exercise performance by transporting fatty acids into cells to be burned for fuel, take 30 60 minutes before training. Parker Naturals Concentrated L Carnitine Liquid, 5000mg All Natural Ci Parker Naturals L carnitine 15ML (25minutes before workout)Pre workout 25minutes before workout 1 recommended scoop .Step 1 : Add L carnitine supplements before workoutStep 2: Add cardio after workout 15 30 minutes