What is the safest maximum daily dose of L Carnitine (L Carnitine) Metagenics Acetyl L Carnitine 100g Powder for Energy Acetyl L Carnitine Powder: Optimize Brain Health and Energy with ALCAR Supplement Levocarnitine Tablets (330 mg) Levocarnitine Oral Solution (1 g 10 mL multiple unit container) Levocarnitine Oral Solution (Sugar Free) (1 g 10 mL multiple unit container) For oral use only. Not for parenteral use. Thorne Acetyl L Carnitine Dietary Supplement, 500 mg California Gold Nutrition, Acetyl L Carnitine, Alfasigma Sourced, Amino Acid, 500 mg, 60 Veggie Capsules, Milk