L Carnitine Swanson Vitamins Now Foods Acetyl L Carnitine 500 mg 200 vegetarian capsules Miss Lamonique L Carnitine in Capsules Forest Vitamin L CARNITINE 500 mg 100 Tablets Forest Vitamin What is L Carnitine? L Carnitine is a naturally occurring amino acid derivative that the human body can synthesize itself. It is mainly found in red meat and dairy products. [1] Core Benefits of Now Foods L Carnitine Capsules L Carnitine, 500 mg. Makeup.ae