Creatine vs L Carnitine: A Detailed Comparison L Carnitine vs Creatine: Which Supplement Is Best for You? Creatine Vs Carnitine: Which One Is Best For Me? PC Laboratories 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. Carnitine, Carnosine & Creatine OH MY! Dr Michael Greger of Nutritionfacts.org