Acetyl L Carnitine (ALCAR) Supplement for Horses Mad Barn Acetyl L carnitine in chronic pain: A narrative review ScienceDirect 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 PDF) Comparison of pharmacokinetics of L carnitine, Acetyl L carnitine and Propionyl Lcarnitine after single oral administration of L carnitine in healthy volunteers