When to take L carnitine: Dosage, forms, and side effects Solgar L CARNITINE 500 MG Non GMO Vegan 60 Tablets Healthland Co. Acetyl L Carnitine 500 mg ALCAR Amino Acid Supplement Vegan Capsul MOTHER NATURE SUPPLEMENTS L Carnitine Metabolic Health Supplement Metagenics Acetyl L Carnitine 500 mg ALCAR Amino Acid Supplement Vegan Capsul MOTHER NATURE SUPPLEMENTS Supercharge Your Workouts with Liquid L Carnitine