Are L Carnitine and L Carnosine the Same? Anti Aging Systems L Carnitine doesnt magically burn fat, it helps your body use fat as energy. Combine it with training and consistency, and youll feel the difference @Marybosch shows us how L Carnitine will boost Creatine Vs L Carnitine Key Differences: Creatine primarily aids in increasing muscle mass and strength when combined with other supplements like L carnitine. L carnitine seems more effective for improving high intensity exercise performance, recovery Creatine vs L Carnitine: Which Supplement Fits Your Goals?