Walgreens Free & Pure L Carnitine 500 mg Capsules The structural formula of L carnitine and Acetyl L carnitine. Download Scientific Diagram L Carnitine Tartrate Vs Acetyl L Carnitine Optimum Health L Carnitine or Acetyl L Carntine What's the difference? Most people talk about carnitine like it is one supplement. It is not. Acetyl L carnitine and L carnitine L tartrate do different jobs, and picking the wrong one for the wrong goal is where people