Creatine vs L Carnitine: Benefits and Key Differences Wellversed The Right Way to Take L Carnitine to Boost Your Training This combo is. L Carnitine helps your body use fat as fuel Creatine fuels strength, power, and performance A stronger, more efficient body! Educational purposes only. Not medical advice. Christine Creatine vs L Carnitine: Which Supplement Fits Your Goals? Creatine monohydrate and L carnitine are two of the most researched supplements in the game., We are talking years. Decades. Proven over and over again., Creatine is your foundation., More strength.