Acetyl L glutamine L Carnitine vs Acetyl L Carnitine: Key Differences Amino acids are a team And they work better together than alone We've got options like Amino Acid Blend, L Arginine, L Carnitine, L Lysine, and L Glutaminebut the real magic happens when they're combined Glutamine: Metabolism and Immune Function, Supplementation and Clinical Translation G.A.C. (Glutamine Arginine Carnitine) 375mg ml injectable 30ml Defy Medical Nutrients and HIV: Part Three N Acetylcysteine, Alpha Lipoic Acid, L Glutamine, and L Carnitine