Rexdrive Amino with L Arginine HCl, L Citrulline, Acetyl L Carnitine Arginate DiHydrochloride, and Glycine Propionyl L Carnitine HCl, Men's Formula, 60 Veggie Capsules L Carnitine Metabolic Health Supplement Metagenics L Carnitine Linus Pauling Institute Oregon State University BLOG & RECIPES SONOMA ROOTS NATURAL MEDICINE Sonoma Roots Natural Medicine If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.